# ToolMono — Full Documentation > ToolMono is a free, open-source collection of 70+ browser-based developer tools. Every tool runs entirely client-side — your data never leaves your browser. No signup, no rate limits, no tracking. This document contains the complete guide content for every tool on the platform. ToolMono provides instant, privacy-first utilities for developers, writers, data engineers, and students. The platform covers text manipulation, code formatting and validation, data conversion between formats (JSON, CSV, XML, YAML, Excel), encoding and hashing, PDF operations, math calculators, color tools, and more. All tools are accessible at https://toolmono.com. ## Text Tools ### Case Converter **URL**: https://toolmono.com/tools/text-case-converter > Free online Case Converter. Switch text to lowercase, UPPERCASE, Title Case, camelCase, snake_case, PascalCase & more instantly. Free, no signup needed. #### Overview A case converter is a free online tool that instantly transforms any text into the letter-case format you need — no coding required. ToolMono's Case Converter supports 13 different formats: camelCase, PascalCase, snake_case, CONSTANT_CASE, kebab-case, dot.case, path/case, Header-Case, UPPERCASE, lowercase, Sentence case, and Capital Case. To check lengths, copy it to our [Word Counter](/tools/word-counter), or test formats using the [Lorem Ipsum Generator](/tools/lorem-ipsum-generator) to preview layouts. Developers reach for a lowercase or uppercase converter daily: mapping database column names to JSON properties, renaming variables to match a project's style guide, or preparing identifiers before a code review. Writers and editors rely on the Title Case converter and Sentence case converter to format article headlines according to AP Style, the Chicago Manual of Style, or APA guidelines. Students and professionals use the capitalization converter to quickly clean up pasted text that arrived in the wrong case. Unlike writing a one-off script in Python, JavaScript, or Bash, this browser-based case converter is instant — paste your text, pick a format, and copy the result in under three seconds. There is no installation, no account, and no rate limit. Major naming conventions are well-defined: camelCase is the default for JavaScript variables per the ECMAScript specification, PascalCase is standard for class names and React components, snake_case is the norm in Python per PEP 8, and SCREAMING_SNAKE_CASE is reserved for compile-time constants. A reliable free online case converter saves hours of tedious manual editing during refactors, API integrations, and content production workflows. #### How to Use 1. Paste or type your text into the Input area on the left side of the page. You can enter anything from a single variable name to a multi-line block of identifiers. 2. Click the case format button that matches your target output — for example, select 'camelCase' to produce camelCase, 'UPPERCASE' to convert all letters to capitals, or 'Title Case' to capitalise the first letter of each word. 3. Click the 'Convert Case' button. The converted text will instantly appear in the Result panel on the right side. 4. Click the 'Copy' button at the top-right of the Result panel to copy the output directly to your clipboard, ready to paste into your code editor, document, or spreadsheet. 5. To start over, click the 'Clear' button to empty the input field, then enter your next text and repeat the process. #### Best Practices - Use PascalCase for class names, React components, TypeScript interfaces, and constructor functions. Every major OOP language — Java, C#, TypeScript, and Kotlin — uses PascalCase for types and classes. - Use camelCase for variables, object properties, and standard functions in JavaScript and TypeScript, as specified by the ECMAScript style conventions and enforced by tools like ESLint and Prettier. - Use SCREAMING_SNAKE_CASE (CONSTANT_CASE) for module-level constants and environment variables across all languages, making immutable values visually distinct from mutable variables at a glance. - Use kebab-case for CSS class names, HTML element IDs, and URL slugs. Kebab-case is human-readable in URLs and is the default output of CSS methodologies like BEM and utility frameworks. - Use snake_case for Python identifiers — variables, functions, methods, and module names — as recommended by Python Enhancement Proposal (PEP 8), the official Python style guide. - When writing article titles or document headings, follow the style guide relevant to your publication: AP Stylebook or Chicago Manual of Style for journalism and non-fiction, APA for academic writing. All three recommend Title Case for major headings with prepositions and conjunctions in lowercase. #### FAQs **Q: What is a case converter?** A: A case converter is an online tool that instantly transforms text from one letter-case style to another — such as from lowercase to UPPERCASE, camelCase, snake_case, PascalCase, or Title Case. [ToolMono's Case Converter](/tools/text-case-converter) supports 13 formats, eliminating the need to write conversion scripts or manually retype text when naming conventions change. **Q: What is the difference between camelCase and PascalCase?** A: camelCase starts with a lowercase letter and capitalises each subsequent word (e.g., 'userFirstName'). PascalCase (also called UpperCamelCase) capitalises every word including the first (e.g., 'UserFirstName'). In JavaScript, camelCase is standard for variables and functions; PascalCase is used for class names and React component names per community style guides. **Q: When should I use snake_case vs. kebab-case?** A: Use snake_case (underscores between words, e.g., 'max_retry_count') for Python variables, functions, and module names as recommended by Python PEP 8. Use kebab-case (hyphens between words, e.g., 'max-retry-count') for CSS class names, HTML IDs, and URL slugs. Kebab-case cannot be used for JavaScript identifiers because hyphens are parsed as subtraction operators. **Q: How do I convert text case in Python?** A: Python has built-in string methods: str.lower() for lowercase, str.upper() for UPPERCASE, str.title() for Title Case, and str.capitalize() to capitalise only the first character. For camelCase or snake_case conversions, install the 'inflection' package or use [ToolMono's free online Case Converter](/tools/text-case-converter) for a fast, no-code solution that requires no environment setup. **Q: How do I change text case in Microsoft Word or Google Docs?** A: In Microsoft Word, select your text and press Shift+F3 to cycle through UPPERCASE, lowercase, and Sentence case. In Google Docs, go to Format > Text > Capitalization to choose your preferred style. Neither application supports camelCase, snake_case, or PascalCase natively — use [ToolMono's Case Converter](/tools/text-case-converter) for those developer-focused formats. **Q: How do I convert case in Excel?** A: Excel has three built-in worksheet functions: =LOWER(A1) produces lowercase, =UPPER(A1) produces UPPERCASE, and =PROPER(A1) produces Title Case. For developer naming conventions like camelCase or snake_case, which Excel does not support natively, paste the cell value into [ToolMono's Case Converter](/tools/text-case-converter), convert it, and paste the result back into your spreadsheet. **Q: What is Title Case and when should I use it?** A: Title Case capitalises the first letter of major words in a phrase (e.g., 'The Quick Brown Fox Jumps'). Use it for article headlines, book titles, presentation headings, and product names. The AP Stylebook and Chicago Manual of Style both recommend keeping articles, coordinating conjunctions, and short prepositions lowercase unless they are the first word in the title. **Q: What is SCREAMING_SNAKE_CASE (CONSTANT_CASE)?** A: SCREAMING_SNAKE_CASE (also called CONSTANT_CASE) uses all uppercase letters with underscores separating words (e.g., MAX_RETRY_COUNT). It is the universal convention for compile-time constants in JavaScript, Python, Java, and C++. The strong visual contrast clearly distinguishes immutable constant values from mutable variables in source code, improving readability during code review. **Q: Is this Case Converter tool free to use?** A: Yes. [ToolMono's Case Converter](/tools/text-case-converter) is 100% free with no usage limits, no account required, and no subscriptions. All 13 case formats — camelCase, PascalCase, snake_case, UPPERCASE, lowercase, Title Case, Sentence case, Header-Case, CONSTANT_CASE, dot.case, kebab-case, path/case, and no case — are available instantly without paying or signing up. **Q: Is my text data safe and private when using this tool?** A: Yes. All conversion runs entirely inside your browser using client-side JavaScript. Your text is never transmitted to ToolMono's servers, never stored in a database, and never logged anywhere. You can safely paste proprietary source code, confidential business documents, API secrets, or sensitive personal data without any privacy or security concern. #### Security & Privacy All text conversion in ToolMono's Case Converter runs entirely inside your browser using client-side JavaScript. Your text is never transmitted to ToolMono's servers, never stored in a database, and never logged anywhere. This means you can safely paste proprietary source code, API keys, confidential business data, or sensitive documents without any privacy or security risk. The tool works fully offline once the page has loaded. --- ### Word Counter **URL**: https://toolmono.com/tools/word-counter > Free online Word Counter. Count words, characters, sentences, paragraphs, and estimate reading time instantly. 100% secure, private, and no signup needed. #### Overview A word counter is a free online tool that instantly calculates the number of words, characters, characters without spaces, lines, paragraphs, and reading time in a block of text. By offering comprehensive metrics, this browser-based utility acts as an all-in-one character counter, word count calculator, and reading time estimator. It processes raw content, document text, and code snippets in real time. Before counting, you can clean your headers using our [Case Converter](/tools/text-case-converter) or generate placeholder segments with the [Lorem Ipsum Generator](/tools/lorem-ipsum-generator) to make editing easier. Writers and bloggers use the word counter to track target lengths for SEO articles, blog posts, and novels. Editors rely on the word count checker to verify that headlines, captions, and meta descriptions meet strict limits for search results. Students and researchers use the tool to check that their academic essays, personal statements, and papers adhere to guidelines. Developers use the character count without spaces and line count to validate API payloads, database limits, and configuration files. Unlike desktop word processors like Microsoft Word or Google Docs, this online word counter provides instant, lightweight text analysis without loading lag. It aligns with publishing standards like the AP Stylebook, the Chicago Manual of Style, and APA guidelines, which govern document structure and length constraints across various media formats. This tool helps you maintain readability, optimize search presence, and draft content with precision. No installation, no account, and no rate limit. #### How to Use 1. Type or paste your text directly into the main input editor area. You can enter articles, essays, database values, or raw code blocks for immediate analysis. 2. Alternatively, click the 'Upload File' button in the toolbar to import a local text file, markdown document, or csv sheet from your computer. 3. Observe the statistics dashboard above the editor to see word count, character count, lines, paragraphs, and estimated reading time update in real-time. 4. Click the 'Copy Text' button in the toolbar to copy the entire contents of the editor to your clipboard for use in another application. 5. Click the red 'Clear' button to empty the input editor, reset all metrics to zero, and begin analyzing a new piece of text. #### Best Practices - Writers should aim for a length of 1,500 to 2,500 words for long-form articles. According to the AP Stylebook, keeping copy concise improves readability and engagement. - When drafting academic papers, always check if citations are counted. The APA guidelines state that reference lists and block quotes may be excluded from the final word count. - For web content, keep paragraph lengths between 3 to 5 sentences. The Chicago Manual of Style recommends structuring text logically to maintain strong visual layout online. - Verify that your SEO page titles do not exceed 60 characters. Search engines typically truncate longer titles, which can harm click-through rates on search engine result pages. - Verify that your meta descriptions remain under 160 characters. Keeping descriptions concise and engaging ensures they display fully in search engine snippets and attract more user clicks. - Use characters without spaces when validating database schema fields. Storing strings in VARCHAR fields requires knowing the exact character length to prevent database insertion errors. #### FAQs **Q: What is a word counter?** A: A [word counter](/tools/word-counter) is a free digital tool by ToolMono that calculates the total number of words and characters in your text. It analyzes inputs instantly to provide essential statistics, including character count with and without spaces, paragraph counts, and estimated reading time to help you format documents cleanly. **Q: What is the difference between characters with spaces and without spaces?** A: Characters with spaces count every single letter, number, punctuation mark, and blank space in your text. Characters without spaces exclude whitespace characters entirely. ToolMono's [character counter](/tools/word-counter) displays both metrics, which is crucial for checking specific database column limits or social media platform character restrictions before publishing your content. **Q: When should I use character count vs. word count?** A: Use word counts for articles, essays, and blogs to track readability and volume. Use character counts when writing social media updates, meta descriptions, or validating database schema lengths. ToolMono's [Word Counter](/tools/word-counter) tracks both metrics concurrently, providing the exact numbers you need for writers, editors, and web developers alike. **Q: How do I check word count in Python?** A: In Python, use the len(text.split()) function to get a quick word count. For a more robust counting system that handles complex whitespace and punctuation, copy your script's output or raw string into [ToolMono's online Word Counter](/tools/word-counter) to verify word and character counts instantly without writing extra regex code. **Q: How do I see word count in Microsoft Word or Google Docs?** A: In Microsoft Word, press Ctrl+Shift+G (Cmd+Shift+G on Mac) to view document statistics. In Google Docs, press Ctrl+Shift+C to see word counts. Alternatively, paste your document content directly into [ToolMono's Word Counter](/tools/word-counter) for a fast, browser-based analysis without opening heavy desktop programs and waiting for them to load online. **Q: How do I count characters in Excel?** A: Use the formula =LEN(A1) in Excel to count characters in a cell, which includes spaces. For counting words, use =LEN(TRIM(A1))-LEN(SUBSTITUTE(A1," ",""))+1. If Excel formulas are too tedious, copy your cell data directly into [ToolMono's Word Counter](/tools/word-counter) for a fast, visual breakdown of all metrics in real time online. **Q: What is estimated reading time and how is it calculated?** A: Estimated reading time measures how long an average person takes to read your text. ToolMono's [Word Counter](/tools/word-counter) calculates this by dividing your total word count by an average reading speed of 225 words per minute, rounding up to the nearest whole minute for clear publishing guidelines and newsletter drafts. **Q: What are paragraph and line counters used for?** A: Paragraph and line counters help writers structure articles and help programmers audit code files. ToolMono's [Word Counter](/tools/word-counter) calculates paragraphs by identifying double line breaks, and counts total lines by parsing newline indicators. This is ideal for formatting essays, server logs, source code, and configuration files correctly without any extra effort. **Q: Is this Word Counter tool free to use?** A: Yes. [ToolMono's Word Counter](/tools/word-counter) is 100% free with no hidden charges, daily limits, or account registration requirements. You can check unlimited documents, upload large text files, and copy stats without restriction, making it a reliable utility for content creators, copywriters, and web developers around the world today. **Q: Is my text data safe and private when using this tool?** A: Absolutely. [ToolMono's Word Counter](/tools/word-counter) is designed with a privacy-first approach. All calculations occur locally in your browser's memory using client-side JavaScript. Your text content is never uploaded to external servers or stored in databases, ensuring absolute safety for proprietary source code, secrets, or sensitive business data at all times. #### Security & Privacy All text analysis in ToolMono's Word Counter runs entirely inside your browser using client-side JavaScript. Your text content is never transmitted to ToolMono's servers, never written to a database, and never logged in any system. This means you can safely paste proprietary source code, confidential business drafts, or sensitive personal essays without any privacy or security risk. The tool works fully offline once the page has loaded. --- ## Code Tools ### JSON Formatter **URL**: https://toolmono.com/tools/json-formatter > Free online JSON Formatter. Prettify, beautify, parse, validate, and minify JSON files instantly. 100% secure client-side processor, no logs, no signup. #### Overview A json formatter is a free online tool designed to prettify, parse, validate, and edit JavaScript Object Notation data in real time. This utility transforms raw, minified, or disorganized string feeds into a highly legible, syntax-highlighted visual layout featuring foldable tree nodes, clear indentation, and automatic syntax error highlights. With support for custom tab spacing, key sorting, and minification, this online JSON Prettifier is the definitive resource for developers debugging APIs, configuration schemas, and data structures. To inspect structure changes side-by-side, use the [JSON Diff Checker](/tools/json-diff-checker), or model structures using the [JSON Schema Generator](/tools/json-schema-generator) to enforce rules. Developers use this formatter to debug API responses, format configuration files, and inspect complex payloads. Data engineers rely on it to clean nested databases, verify schema payloads, and reorder key keys alphabetically for storage efficiency. QA testers benefit from the real-time validator to inspect structural hierarchies, check string brackets, and verify that payloads align with API rules. Systems administrators also use it to review configurations for container deployments and microservices structures, ensuring smooth operations. Unlike desktop editors or command-line wrappers that require manual configuration, this web utility formats data instantly with zero lag. The formatter strictly adheres to the ECMAScript specification, JSON schema standards, and RFC 8259 guidelines, ensuring your structured arrays remain compatible across all runtimes. There are no limits, no signup requirements, and no tracking cookies on this 100% private, browser-based editor. #### How to Use 1. Paste your raw, minified, or unformatted JSON text directly into the primary Input editor panel on the left side of the dashboard page. 2. Configure your preferred indentation spacing options, such as two spaces, four spaces, or compact tabs, using the dropdown controls in the panel header. 3. Click the Beautify button to parse the string, or use the Minify button if you want to condense the payload for production deployment. 4. Inspect the syntax-highlighted output in the Result editor on the right, which highlights parsing errors with exact line number markers. 5. Click the Copy button to capture the formatted data to your clipboard, or click Clear to empty both editors and start again. #### Best Practices - Verify that your text content strictly adheres to RFC 8259 guidelines by using double quotes for all string literals and object keys. Single quotes are invalid. - Standardize on a consistent indentation style of two or four spaces across all configuration files, aligning with standard JSON schema standards to maintain high readability across systems. - Ensure all numbers comply with the ECMAScript specification, which strictly forbids leading zeros, trailing decimal points, and hexadecimal notation inside standard JSON objects during serialization. - Validate files with a schema validation tool before deploying to staging, ensuring your objects match required field definitions and data types without structural variations or missing nodes. - Sort object keys alphabetically in your configuration source files before committing, which simplifies diff tracking and git comparisons during team-based code reviews and pull requests. - Use the minified output format for production databases and server network transmission payloads, as removing all whitespaces reduces overall bandwidth consumption and file size significantly. #### FAQs **Q: What is a JSON Formatter?** A: A [JSON Formatter](/tools/json-formatter) is a developer tool by ToolMono that parses, validates, and formats JavaScript Object Notation. It converts compressed, unreadable strings into structured layouts with clean indentation and syntax highlighting, helping web programmers review API structures, config files, and nested databases easily and efficiently on your local system. **Q: What makes JSON invalid?** A: JSON becomes invalid due to syntax mistakes like single quotes, trailing commas, unquoted keys, or inline comments. Using ToolMono's [JSON Formatter](/tools/json-formatter) helps you detect these parsing errors instantly. The tool highlights the exact line containing the error, making troubleshooting fast, precise, and completely hassle-free without writing parser scripts. **Q: When should I use formatted vs. minified JSON?** A: Use formatted JSON when writing, debugging, or reviewing configurations to ensure human readability. Use minified JSON for production APIs, configuration files, and server communication to reduce payload sizes. ToolMono's [JSON Formatter](/tools/json-formatter) supports both modes, allowing you to cycle between formats in one quick, seamless click during your active coding sessions. **Q: How do I format JSON in Python?** A: In Python, use the json.dumps(data, indent=4) function to format strings, and json.loads() to validate. For quick visual formatting without executing terminal scripts, paste your raw terminal output into ToolMono's online [JSON Formatter](/tools/json-formatter) to preview, parse, and clean your objects instantly in your local Python environment. **Q: How do I see formatted JSON in Microsoft Word or Google Docs?** A: Neither Microsoft Word nor Google Docs supports JSON syntax highlighting or code trees natively. For document drafts, paste your raw string into ToolMono's [JSON Formatter](/tools/json-formatter) first. Reformat the syntax with clean spacing and indentation, then copy the stylized, beautiful result back into your word document for clean presentation in documentation. **Q: How do I print formatted JSON in Excel?** A: Excel doesn't format JSON natively and splits nested strings across columns incorrectly. Paste your data into ToolMono's [JSON Formatter](/tools/json-formatter) to clean and validate it, then use our related data converters to output it to CSV files. This ensures structured tables load cleanly in spreadsheets for your corporate reports. **Q: What is the difference between JSON and JSON Schema?** A: JSON is a raw data-interchange format, while JSON Schema is a declarative language used to validate JSON structures. ToolMono's [JSON Formatter](/tools/json-formatter) cleans the raw data payloads, while the related schema generator maps their structural constraints to enforce data integrity across systems without manual parsing configurations. **Q: What is JSON-LD and how does it differ from standard JSON?** A: JSON-LD is a method of encoding Linked Data using JSON, primarily used for SEO metadata like Schema.org annotations on web pages. While the syntax is identical, standard JSON is for internal APIs. ToolMono's [JSON Formatter](/tools/json-formatter) validates both formats client-side to ensure compliance and structure correctness for your semantic website requirements. **Q: Is this JSON Formatter tool free to use?** A: Yes. ToolMono's [JSON Formatter](/tools/json-formatter) is completely free to use with no usage limits, no daily restrictions, and no account registrations. Developers can format unlimited strings, minify large payloads, and validate configuration files without ever encountering a paywall, account limitations, or advertising blockades without providing your email addresses. **Q: Is my JSON data safe and private when using this tool?** A: Absolutely. ToolMono's [JSON Formatter](/tools/json-formatter) is built with a local-first architecture. All parsing, validation, and styling processes run entirely within your web browser's memory. No text or payload data is ever uploaded to our servers, keeping your API payloads, secrets, and database credentials fully secure from external network interceptions. #### Security & Privacy All formatting in ToolMono's JSON Formatter runs entirely inside your browser using client-side JavaScript. Your data payload is never transmitted to ToolMono's servers, never stored in a database, and never logged anywhere. You can safely paste proprietary configs, database rows, and API secrets without any privacy or security risk. The tool works fully offline. --- ### SQL Formatter **URL**: https://toolmono.com/tools/sql-formatter > Free online SQL Formatter. Prettify, beautify, and format SQL queries, statement syntax, and database scripts instantly. 100% secure client-side processor. #### Overview A sql formatter is a free online tool designed to prettify, layout, validate, and clean structured query database scripts in real time. This query formatter transforms messy, unreadable, or minified text strings into beautifully indented queries, featuring standard SQL keyword capitalization, table alignment, and syntax color coding. It supports multiple SQL dialects, including PostgreSQL, MySQL, MS SQL Server, PL/SQL, and Oracle database queries. Before executing queries, you can compress payloads using our [SQL Minifier](/tools/sql-minifier) or check code schemas with our [SQL Validator](/tools/sql-validator) to ensure error-free executions, making database development work fluid and rapid. Database administrators use this formatter to review long, complex query logs and analyze indexing performance on production database servers. Backend developers rely on it to format raw inline query strings inside application code repositories for better pull request readability. QA engineers benefit from the clear database syntax layout to check nested join conditions, verify table schema references, and inspect test fixtures quickly during regression test cycles, allowing developers to spot query errors before they hit database instances. Unlike command-line client tools or SSMS extensions that require manual installations, ToolMono's web formatter is accessible from any platform with zero setup. The formatting parser strictly adheres to the ANSI SQL standard, SQL:2016 specifications, and modern database schema guidelines, producing standard compliant code across different storage platforms. There are no daily limits, registration walls, or cloud logging risks on this secure browser editor, keeping your development data safe. #### How to Use 1. Paste your raw, messy, or unformatted SQL database query directly into the left Input editor panel on the dashboard page layout. 2. Choose your preferred dialect options, such as PostgreSQL, MySQL, or Transact-SQL, and select keyword capitalization cases from the configuration header. 3. Click the Beautify button to parse the commands, align nested JOIN paths, and format indentations with clean multi-line layouts instantly. 4. Inspect the color-coded syntax output in the right Result editor, which highlights statements clearly and points out missing semicolon boundaries. 5. Click the Copy button to capture the formatted query to your clipboard, or click Clear to clean both panels and start again. #### Best Practices - Capitalize all standard keywords and built-in function names strictly according to ANSI SQL standard guidelines, keeping schema declarations visually separate from variable parameters or data values inside scripts. - Standardize on a consistent indentation spacing of two or four spaces for nested join conditions to align with standard database schema guidelines across all internal development teams. - Always end individual query statements with semicolons as defined in the SQL:2016 specifications, ensuring multiple query strings execute without driver conflicts on different production servers. - Use meaningful table aliases when writing complex relational connections, making SQL code more readable and self-documenting for other database administrators who will maintain the schemas. - Avoid using asterisk selectors in production database scripts, as naming columns explicitly increases query efficiency and prevents application crashes during schema migrations and database changes. - Validate query syntax using an online parser before running migrations on database instances, ensuring zero script execution errors during critical deployment maintenance windows and server updates. #### FAQs **Q: What is an SQL Formatter?** A: An [SQL Formatter](/tools/sql-formatter) is a developer utility by ToolMono that parses, validates, and formats database scripts. It converts unreadable inline strings into structured layouts with proper indentation and capitalized keywords, helping web programmers review database queries, complex JOIN statements, and schemas easily and efficiently right inside their default web browser. **Q: Does formatting affect SQL performance?** A: No. Database parsers ignore whitespace, spacing, and casing during compilation. However, poorly formatted SQL statements increase human reading mistakes. Using ToolMono's [SQL Formatter](/tools/sql-formatter) optimizes human readability, ensuring developers identify logical problems, table alias errors, and join faults before query compilation runs in production systems and query processes. **Q: What dialects does this SQL Formatter support?** A: ToolMono's [SQL Formatter](/tools/sql-formatter) supports all major relational database dialects. You can format query statements for PostgreSQL, MySQL, Transact-SQL (MS SQL Server), PL/SQL (Oracle), SQLite, and MariaDB database engines. Select your dialect from the configuration header to enforce specific keyword standards and formatting rules under the configuration custom settings. **Q: How do I format SQL query in VS Code?** A: In VS Code, format SQL files using the built-in formatter shortcut (Alt+Shift+F) after installing an extension. For quick formatting without installing extensions, paste your queries into ToolMono's browser-based [SQL Formatter](/tools/sql-formatter) to clean, structure, and check your code instantly on your system within a few seconds in your browser. **Q: How do I format SQL query in SSMS?** A: Microsoft SQL Server Management Studio does not format queries natively. You must use third-party add-ins or extensions. For a free, lightweight alternative, paste your database scripts into ToolMono's [SQL Formatter](/tools/sql-formatter) to organize columns, capitalizations, and indentations without installing any plugins on your workstation on your local corporate computer. **Q: How do I format SQL script in Notepad++?** A: Notepad++ requires the Poor Man's T-SQL Formatter plugin to format scripts locally. If you do not have plugin installation permissions on your workstation, use ToolMono's online [SQL Formatter](/tools/sql-formatter) to format and validate your database statements directly inside any web browser window without writing complex script macros locally. **Q: Is this SQL Formatter tool safe for corporate databases?** A: Yes. ToolMono's [SQL Formatter](/tools/sql-formatter) utilizes client-side architecture. All script operations and formatting transformations execute inside your local browser tab. No database query is sent to external servers, making it safe to format corporate schema scripts containing proprietary tables and columns in production networks without any cloud connectivity or external storage requirements. **Q: Can I format PL/SQL queries here?** A: Yes. ToolMono's [SQL Formatter](/tools/sql-formatter) handles PL/SQL declarations, Oracle packages, and standard statements. Paste your PL/SQL scripts into the editor, configure your formatting preferences, and click Beautify to automatically indent block declarations, clean up keyword casings, and align nested parameters automatically and cleanly in a single browser click. **Q: Why should I use lowercase vs. uppercase SQL keywords?** A: Uppercase keywords are recommended by SQL standards to distinguish commands from database tables and column names. Using ToolMono's [SQL Formatter](/tools/sql-formatter) converts keywords to uppercase automatically, improving team code reviews, repository readability, and standard schema guidelines compliance across all your project files to keep your database code clean and tidy. **Q: Is this online SQL Formatter completely free?** A: Yes. ToolMono's [SQL Formatter](/tools/sql-formatter) is 100% free with no registration requirements, no query character limits, and no advertising blocks. Database administrators can format unlimited query files, minify scripts, and validate schemas without ever facing subscriptions or pricing packages on our site for all of their daily administrative operations. #### Security & Privacy All query processing in ToolMono's SQL Formatter runs fully inside your browser memory using local JavaScript. Your queries, tables, and database secrets are never sent to external servers, never saved in database logs, and never exposed. You can safely format internal company schemas and transaction queries without any security risks. The tool is offline-ready. --- ### SQL Minifier **URL**: https://toolmono.com/tools/sql-minifier > Free online SQL Minifier tool. Minify SQL queries by removing whitespace and comments. #### Overview The SQL Minifier aggressively compresses your SQL queries by removing unnecessary whitespace, newlines, and comments. This is extremely useful when embedding SQL queries directly into application code (like Java, Python, or Go) as a single string literal. #### How to Use 1. Paste your multi-line SQL query into the left editor. 2. The tool will instantly strip out all comments and formatting. 3. Copy the resulting one-line query from the right editor. #### Best Practices - Ensure you have a backup of the original formatted query, as minification inherently destroys readability. - If your application uses ORMs, minifying raw SQL isn't necessary, but it's great for raw query builders. #### FAQs **Q: Does it remove block comments?** A: Yes, both inline `--` comments and block `/* * /` comments are safely removed. **Q: Is my data secure?** A: Absolutely. All processing is done locally in your browser. #### Security & Privacy Minification happens entirely inside your browser's memory using JavaScript regular expressions. Your database schema is never transmitted. --- ### Regex Tester **URL**: https://toolmono.com/tools/regex-tester > Free online Regex Tester tool. Build and test regular expressions with real-time match highlighting. #### Overview The Regex Tester is an interactive, visual environment for building and debugging Regular Expressions. It features real-time highlighting, group extraction, and detailed explanations of your pattern syntax. #### How to Use 1. Type your Regular Expression pattern into the top input (e.g., `^[a-z]+$`). 2. Toggle specific flags like `g` (global), `i` (case-insensitive), or `m` (multiline). 3. Paste your test text into the editor below. 4. Matches and capturing groups will be instantly highlighted. #### Best Practices - Always test your regex against edge cases, such as empty strings, extremely long inputs, or unexpected characters, to prevent ReDoS (Regular Expression Denial of Service) vulnerabilities. #### FAQs **Q: Which regex flavor is supported?** A: The tool utilizes the modern JavaScript (ECMAScript) RegExp engine. **Q: Is my data secure?** A: Absolutely. All processing is done locally in your browser. #### Security & Privacy Your regex evaluations run safely within your browser's JavaScript engine. No test data or patterns are logged remotely. --- ### XML Validator **URL**: https://toolmono.com/tools/xml-validator > Free online XML Validator tool. Validate XML documents and find syntax errors. #### Overview The XML Validator instantly checks your XML documents for syntax errors, missing closing tags, and malformed structures. It provides precise line numbers for errors to help you debug quickly. #### How to Use 1. Paste your XML code into the editor. 2. The validator runs automatically as you type. 3. Check the gutter (line numbers) or the error panel below to see specific syntax issues. #### Best Practices - Always define an XML declaration (e.g., ``) at the top of your document. - Use consistent naming conventions for tags, like lowercase with hyphens or camelCase. #### FAQs **Q: Does it support XML Schema (XSD) validation?** A: Currently, this tool performs syntax (well-formedness) validation. Strict XSD schema validation is planned for a future update. **Q: Is my data secure?** A: Absolutely. All processing is done locally in your browser. Your data is never sent to our servers. #### Security & Privacy All XML parsing and validation is done locally in your browser using secure DOM APIs. We do not evaluate external entities (XXE), and your data never leaves your machine. --- ### YAML Validator **URL**: https://toolmono.com/tools/yaml-validator > Free online YAML Validator tool. Validate YAML documents and find syntax errors. #### Overview The YAML Validator checks your configuration files for indentation errors, invalid characters, and structural mistakes. YAML relies heavily on exact spacing, making this tool essential for preventing CI/CD pipeline failures. #### How to Use 1. Paste your YAML configuration into the editor. 2. The validator instantly checks for formatting errors. 3. Hover over highlighted lines to see the specific parsing error. #### Best Practices - Always use exactly 2 spaces for indentation. - Quote string values that contain special characters like `:`, `{`, or `[` to prevent them from being evaluated as YAML structures. #### FAQs **Q: Does this support YAML 1.2?** A: Yes, our parser fully complies with the YAML 1.2 specification. **Q: Is my data secure?** A: Absolutely. All processing is done locally in your browser. Your data is never sent to our servers. #### Security & Privacy Validation is performed locally using a secure JS parser that disables arbitrary code execution. Your secrets and configuration files are never transmitted. --- ### CSV Validator **URL**: https://toolmono.com/tools/csv-validator > Free online CSV Validator tool. Validate CSV documents and find syntax errors. #### Overview The CSV Validator strictly checks comma-separated values files for structural integrity. It detects mismatched row lengths, unescaped quotes, and invalid delimiters, preventing data import failures in databases or spreadsheet software. #### How to Use 1. Paste your CSV text into the editor. 2. The validator scans the structure line by line. 3. Any rows containing errors (e.g., wrong number of columns compared to the header) will be highlighted with a detailed explanation. #### Best Practices - Always ensure your first row accurately defines your column headers, as the validator uses it to determine the expected length of all subsequent rows. - When dealing with large CSV files, validate them locally before attempting to upload them to a production database. #### FAQs **Q: Can it validate massive CSV files?** A: Yes, the browser-based streaming parser can handle large files efficiently without crashing. **Q: Is my data secure?** A: Absolutely. All processing is done locally in your browser. #### Security & Privacy File validation is done purely on the client-side via JavaScript. Your financial or customer datasets are never uploaded to the cloud. --- ### SQL Validator **URL**: https://toolmono.com/tools/sql-validator > Free online SQL Validator tool. Validate SQL queries and find syntax errors. #### Overview The SQL Validator checks your database queries for syntax errors before you run them in production. It identifies misplaced commas, unclosed quotes, and reserved word conflicts. #### How to Use 1. Paste your SQL query into the editor. 2. Select your specific database dialect if needed. 3. Review any red squiggly lines or error messages indicating syntax issues. #### Best Practices - Always validate massive database migration scripts before running them against a live database. - Use backticks or brackets for column names that conflict with SQL reserved words. #### FAQs **Q: Can it validate against my live database schema?** A: No, this tool only performs static syntax validation. It does not connect to your database to verify if tables or columns exist. **Q: Is my data secure?** A: Absolutely. All processing is done locally in your browser. Your data is never sent to our servers. #### Security & Privacy We validate your SQL using client-side AST parsers. Your proprietary database schema names and query logic never leave your computer. --- ### SQL Query Analyzer **URL**: https://toolmono.com/tools/sql-query-analyzer > Free online SQL Query Analyzer tool. Analyze SQL queries to extract tables, columns, and operations. #### Overview The SQL Query Analyzer parses raw database queries and extracts meaningful metadata. It automatically identifies all referenced tables, selected columns, functions used, and execution operations, which is incredibly useful for database auditing and query optimization. #### How to Use 1. Paste a complex SQL query into the input field. 2. The analyzer will deconstruct the AST (Abstract Syntax Tree). 3. View the extracted list of Tables, Columns, and Clauses in the results panel. #### Best Practices - Use this tool to verify that your queries are not accidentally referencing deprecated tables before deploying code. #### FAQs **Q: Does it connect to my database?** A: No, the tool performs static code analysis. It infers tables and columns strictly based on the provided text. **Q: Is my data secure?** A: Absolutely. All processing is done locally in your browser. #### Security & Privacy Query analysis utilizes a secure, offline AST parser. Your database schema structure and business logic are fully protected. --- ## Data Tools ### JSON → CSV **URL**: https://toolmono.com/tools/json-to-csv > Free online JSON → CSV tool. Convert JSON arrays to CSV format and download the result. #### Overview The JSON to CSV converter allows you to instantly transform JSON arrays into comma-separated values (CSV). It flattens nested objects automatically, making it perfect for preparing API data for spreadsheet analysis. #### How to Use 1. Paste an array of JSON objects into the left editor. 2. The converter will automatically extract the headers and format the rows. 3. Click the Download or Copy button to get your CSV data. #### Best Practices - Ensure your JSON input is a valid array of objects. - If you have deeply nested arrays, consider pre-processing your JSON before converting, as complex nesting is difficult to represent in flat CSV columns. #### FAQs **Q: How does it handle nested objects?** A: Nested JSON objects are flattened using dot notation for column headers (e.g., `user.address.city`). **Q: Is my data secure?** A: Absolutely. All processing is done locally in your browser. Your data is never sent to our servers. #### Security & Privacy All data flattening and parsing happens strictly in your browser. Your sensitive API data is never uploaded to a server. --- ### CSV → JSON **URL**: https://toolmono.com/tools/csv-to-json > Free online CSV → JSON tool. Parse CSV files and convert them to structured JSON. #### Overview The CSV to JSON converter seamlessly parses tabular CSV data into a structured JSON array. It intelligently detects headers and attempts to convert numeric and boolean values into their native JSON types. #### How to Use 1. Paste your CSV text (including headers) into the input editor. 2. The tool will automatically parse the rows and generate a JSON array. 3. Copy or download the resulting JSON file. #### Best Practices - Ensure the first row of your CSV contains column headers, as these become the JSON keys. - Ensure your CSV values are properly quoted if they contain commas. #### FAQs **Q: What delimiter does it support?** A: The parser automatically detects commas, tabs, and semicolons as delimiters. **Q: Is my data secure?** A: Absolutely. All processing is done locally in your browser. Your data is never sent to our servers. #### Security & Privacy Parsing is performed locally using PapaParse. No spreadsheet or customer data is transmitted to our servers. --- ### Excel → JSON **URL**: https://toolmono.com/tools/excel-to-json > Free online Excel → JSON tool. Parse Excel files and convert them to structured JSON. #### Overview The Excel to JSON converter securely parses Excel spreadsheets (.xlsx, .xls) and transforms them into an array of JSON objects. It extracts rows and column headers automatically, making it incredibly useful for data migration tasks. #### How to Use 1. Drag and drop your Excel file (.xlsx or .xls) into the upload area. 2. The tool will instantly parse the file and generate a structured JSON array. 3. Use the Copy or Download button to export your JSON data. #### Best Practices - Ensure the first row of your Excel sheet contains the column names (headers). - Clean up any empty rows or trailing formatting in Excel before converting to avoid null or empty objects in your JSON. #### FAQs **Q: What formats are supported?** A: We support standard Excel formats including .xlsx and .xls. **Q: Is my spreadsheet data secure?** A: Absolutely. All processing is done locally in your browser. Your data is never sent to our servers. #### Security & Privacy Parsing is executed entirely locally via the SheetJS library. We do not upload your spreadsheets to any external servers. --- ### JSON → Excel **URL**: https://toolmono.com/tools/json-to-excel > Free online JSON → Excel tool. Convert JSON arrays to Excel format and download the result. #### Overview The JSON to Excel converter takes a structured array of JSON objects and compiles it into a downloadable .xlsx spreadsheet file. It flattens the properties to serve as column headers. #### How to Use 1. Paste your JSON array of objects into the editor. 2. The tool will extract keys for the column headers and map the values to rows. 3. Click 'Download Excel' to save the .xlsx file to your computer. #### Best Practices - Ensure your JSON is formatted as an array of objects (e.g., `[ { "name": "A" }, { "name": "B" } ]`). - Avoid deeply nested JSON structures, as standard spreadsheets are inherently flat. #### FAQs **Q: Will it preserve nested JSON objects?** A: Nested objects are typically stringified or flattened depending on the exact structure, so flat JSON arrays work best. **Q: Is my data secure?** A: Absolutely. All processing is done locally in your browser. Your data is never sent to our servers. #### Security & Privacy The Excel file generation happens securely within your browser's memory. No data is transmitted externally. --- ### YAML ↔ JSON **URL**: https://toolmono.com/tools/yaml-to-json > Free online YAML ↔ JSON tool. Convert YAML configuration files to JSON and back. #### Overview The YAML ↔ JSON converter provides bidirectional translation between YAML configurations and JSON payloads. It is perfect for developers working with Docker, Kubernetes, or CI/CD pipelines that often require converting syntax. #### How to Use 1. Paste your JSON or YAML into the left editor. 2. The tool automatically detects the format and converts it to the opposite syntax. 3. Copy or download the converted result from the right editor. #### Best Practices - Always validate your YAML syntax before conversion, as strict indentation errors will prevent a successful JSON translation. #### FAQs **Q: Are comments preserved during conversion?** A: No, JSON does not natively support comments, so any comments in your YAML will be stripped during the conversion process. **Q: Is my data secure?** A: Absolutely. All processing is done locally in your browser. Your data is never sent to our servers. #### Security & Privacy All conversions use a client-side parser, meaning your infrastructure configurations and secrets are never sent over the network. --- ### XML ↔ JSON **URL**: https://toolmono.com/tools/xml-to-json > Free online XML ↔ JSON tool. Convert XML data to JSON and back. #### Overview The XML ↔ JSON converter translates older SOAP/XML responses into modern JSON structures and vice versa. It bridges the gap between legacy systems and modern REST APIs seamlessly. #### How to Use 1. Paste your XML or JSON into the input editor. 2. The tool parses the hierarchy and generates the equivalent format. 3. You can configure how attributes and root nodes are handled via the settings. #### Best Practices - Be aware that converting XML to JSON can be lossy if the XML relies heavily on attributes and namespaces. #### FAQs **Q: Why do some elements become arrays?** A: If an XML document has multiple child tags with the exact same name, they are grouped into a JSON array. **Q: Is my data secure?** A: Absolutely. All processing is done locally in your browser. Your data is never sent to our servers. #### Security & Privacy The XML parser operates safely within your browser's sandboxed environment without executing external entities. --- ## Crypto Tools ### Hash Generator **URL**: https://toolmono.com/tools/hash-generator > Free online Hash Generator tool. Generate MD5, SHA-1, SHA-256, SHA-512, and bcrypt hashes. #### Overview The Hash Generator allows you to instantly compute cryptographic hashes such as MD5, SHA-256, and bcrypt from any text input. It's incredibly useful for verifying data integrity, generating secure checksums, and testing password hashing configurations. #### How to Use 1. Type or paste your raw text into the input field. 2. Select your desired hashing algorithm (e.g., SHA-256, bcrypt). 3. The generated hash will automatically appear in the output field. 4. Click copy to securely copy the hash to your clipboard. #### Best Practices - Never use MD5 or SHA-1 for storing passwords, as they are vulnerable to collision and rainbow table attacks. Always use bcrypt, Argon2, or similar adaptive hashing algorithms. - When generating hashes for passwords, ensure you use a unique, random salt. #### FAQs **Q: Can I reverse or decrypt a hash?** A: No, cryptographic hashes are one-way functions. They are designed to be irreversible, unlike encryption algorithms. **Q: Is my data secure?** A: Absolutely. All processing is done locally in your browser. Your data is never sent to our servers. #### Security & Privacy All cryptographic hashing is performed entirely client-side using Web Crypto APIs. Your plain-text passwords and sensitive data are strictly processed in your browser and are never transmitted to our servers. --- ### JWT Decoder **URL**: https://toolmono.com/tools/jwt-decoder > Free online JWT Decoder tool. Decode and inspect JWT tokens. View header, payload, and verify structure. #### Overview The JWT Decoder safely unpacks JSON Web Tokens (JWT) into their readable Header and Payload components. It automatically formats the JSON objects and highlights timestamps, making it effortless to debug authentication issues. #### How to Use 1. Paste your JWT token (the string containing three dot-separated parts) into the input editor. 2. The tool will instantly decode the Base64Url-encoded Header and Payload. 3. Optionally, input a secret key to verify the token's signature. #### Best Practices - Never place sensitive information (like passwords or credit card numbers) in a JWT payload, as it can be easily decoded by anyone who intercepts it. #### FAQs **Q: Does this tool validate the signature?** A: Yes, if you provide the secret key or public certificate, the tool will locally verify the signature to ensure the token wasn't tampered with. **Q: Is my data secure?** A: Absolutely. All processing is done locally in your browser. Your data is never sent to our servers. #### Security & Privacy Tokens are decoded instantly via JavaScript using Base64 decoding. Your JWTs, which often contain sensitive session data, never leave your browser. --- ### JWT Generator **URL**: https://toolmono.com/tools/jwt-generator > Free online JWT Generator tool. Generate JWT tokens with custom payloads and secrets. #### Overview The JWT Generator allows you to forge custom JSON Web Tokens (JWT) for testing your APIs and authentication middleware. You can customize the header, payload claims, and sign it using various algorithms like HS256 and RS256. #### How to Use 1. Edit the Header JSON to specify your desired algorithm (e.g., HS256). 2. Edit the Payload JSON to include the claims (e.g., `sub`, `roles`) you want to test. 3. Provide a Secret Key in the signature section. 4. The generated JWT token will automatically update as you type. #### Best Practices - Use strong, randomly generated secrets (at least 32 characters) for signing production tokens. - Always include an `exp` (expiration) claim to ensure tokens are short-lived. #### FAQs **Q: Which signing algorithms are supported?** A: We support symmetric algorithms like HS256, HS384, HS512, and asymmetric algorithms like RS256. **Q: Is my data secure?** A: Absolutely. All processing is done locally in your browser. Your data is never sent to our servers. #### Security & Privacy The token signing occurs strictly client-side using native Web Crypto APIs. Your private signing keys and token payloads are never transmitted. --- ## Network Tools ### URL Parser **URL**: https://toolmono.com/tools/url-parser > Free online URL Parser tool. Parse and inspect all parts of a URL: protocol, host, path, query. #### Overview The URL Parser breaks down any complex web address into its discrete components (Protocol, Host, Port, Path, Query Parameters, and Hash). It’s an essential utility for debugging broken links, analyzing routing behavior, or reverse-engineering API endpoints. #### How to Use 1. Paste a full URL into the input field. 2. The tool instantly parses the URL using the browser's native URL API. 3. View the cleanly separated components and a formatted table of all query string parameters. #### Best Practices - Always ensure your URLs contain a valid protocol (`http://` or `https://`) for accurate parsing, as missing protocols can cause the host to be misidentified as a path. #### FAQs **Q: Why is it throwing an 'Invalid URL' error?** A: The input must be a strictly valid URL string, usually starting with a protocol like `http://` or `https://`. **Q: Is my data secure?** A: Absolutely. All processing is done locally in your browser. #### Security & Privacy Parsing is executed entirely client-side. The URLs you inspect are never logged, ensuring privacy for internal or secure endpoints. --- ## Time Tools ### Unix Timestamp Converter **URL**: https://toolmono.com/tools/timestamp-converter > Free online Unix Timestamp tool. Convert Unix timestamps to human-readable dates and vice versa. #### Overview The Unix Timestamp Converter instantly translates epoch time (the number of seconds since Jan 1, 1970) into human-readable dates, and vice versa. It is an indispensable tool for debugging database records, JWT expiration claims, and server logs. #### How to Use 1. To decode: Paste your Unix timestamp (seconds or milliseconds) into the input field. 2. To encode: Select a date and time from the calendar picker. 3. The converted outputs will display instantly in both Local Time and UTC. #### Best Practices - Be mindful of whether your database stores timestamps in seconds (10 digits) or milliseconds (13 digits). The tool auto-detects standard formats, but it's important for your application logic. - Always store timestamps in UTC (epoch) in your database, and only convert to local timeframes on the client UI. #### FAQs **Q: Why do some timestamps look like they are in the year 54000?** A: You likely inputted a timestamp in milliseconds (13 digits) while the tool or backend expected seconds (10 digits). The tool attempts to auto-detect this. **Q: Is my data secure?** A: Absolutely. All processing is done locally in your browser. #### Security & Privacy All time conversions are performed locally using the JavaScript `Date` object. Your logs and tokens are never sent to external servers. --- ## Math Tools ### Calculator **URL**: https://toolmono.com/tools/calculator > Free online Calculator tool. #### Overview A simple, privacy-friendly online calculator for basic arithmetic operations. It processes all calculations instantly in your browser without requiring an internet connection. #### How to Use 1. Use your keyboard or the on-screen buttons to enter numbers. 2. Select your desired operator (+, -, *, /). 3. Press Enter or the equals (=) button to calculate the result. 4. Use 'C' to clear the current entry, or 'AC' to clear everything. #### Best Practices - For complex equations with parentheses, trigonometry, or exponents, use the Scientific Calculator. #### FAQs **Q: Is this tool free?** A: Yes, all tools on ToolMono are 100% free. **Q: Is my data secure?** A: Absolutely. All processing is done locally in your browser. #### Security & Privacy All arithmetic operations execute entirely within your browser's memory. No financial or personal numerical data is transmitted. --- ### Percentage Calculator **URL**: https://toolmono.com/tools/percentage-calculator > Free online Percentage Calculator tool. #### Overview The Percentage Calculator instantly solves common percentage problems, such as finding a percentage of a number, calculating percentage increase/decrease, or determining what percentage one number is of another. #### How to Use 1. Select the type of percentage calculation you need from the dropdown. 2. Enter your base numbers into the input fields. 3. The result updates automatically as you type. #### Best Practices - When calculating financial margins, make sure you know whether you need percentage markup or margin, as they use different formulas. #### FAQs **Q: How accurate is the result?** A: Results are calculated using standard double-precision floating-point format and are highly accurate. **Q: Is my data secure?** A: Absolutely. All processing is done locally in your browser. #### Security & Privacy Calculations run client-side. Your financial figures or statistical data are never uploaded to our servers. --- ### Scientific Calculator **URL**: https://toolmono.com/tools/scientific-calculator > Free online Scientific Calculator tool. #### Overview An advanced browser-based scientific calculator that supports trigonometric functions, logarithms, exponents, and complex algebraic expressions with parentheses. #### How to Use 1. Enter your mathematical expression using the on-screen keys or your keyboard. 2. Ensure parentheses are properly closed for complex equations. 3. Click the equals (=) button or press Enter to evaluate. #### Best Practices - By default, trigonometric functions use Degrees. Switch to Radians in the settings if you are working on advanced calculus problems. #### FAQs **Q: Can I view my calculation history?** A: Yes, your previous calculations are saved locally in your browser session for quick reference. **Q: Is my data secure?** A: Absolutely. All processing is done locally in your browser. #### Security & Privacy Expression evaluation uses safe, client-side math parsing libraries. No eval() is used, and no data leaves your device. --- ### Binary ↔ Decimal Converter **URL**: https://toolmono.com/tools/binary-decimal-converter > Free online Binary ↔ Decimal Converter tool. #### Overview Instantly translate base-2 (binary) numbers into base-10 (decimal) numbers, and vice versa. Essential for computer science students, embedded systems developers, and network engineers. #### How to Use 1. Select the conversion direction (Binary to Decimal, or Decimal to Binary). 2. Enter your number into the input field. 3. The converted value appears instantly. #### Best Practices - When entering binary, ensure the string only contains 0s and 1s. Any other characters will result in a parsing error. #### FAQs **Q: What is the maximum number supported?** A: The tool safely supports up to the JavaScript maximum safe integer (2^53 - 1). **Q: Is my data secure?** A: Absolutely. All processing is done locally in your browser. #### Security & Privacy All base conversions are performed mathematically in your browser via JavaScript's `parseInt` and `toString` methods. --- ### Decimal ↔ Hex Converter **URL**: https://toolmono.com/tools/decimal-hex-converter > Free online Decimal ↔ Hex Converter tool. #### Overview Convert base-10 (decimal) numbers to base-16 (hexadecimal) strings, and vice versa. Highly useful for web developers working with color codes, memory addresses, and low-level debugging. #### How to Use 1. Select the conversion direction (Decimal to Hex, or Hex to Decimal). 2. Type your value into the input field. For Hex, letters A-F are supported. 3. The converted result will instantly display. #### Best Practices - You can optionally include or omit the `0x` prefix for hexadecimal inputs; the converter will handle it automatically. #### FAQs **Q: Are negative numbers supported?** A: Yes, the tool supports converting negative decimal numbers into their two's complement hexadecimal representation. **Q: Is my data secure?** A: Absolutely. All processing is done locally in your browser. #### Security & Privacy Base conversions happen entirely client-side. No data is transmitted. --- ### Decimal ↔ Octal Converter **URL**: https://toolmono.com/tools/decimal-octal-converter > Free online Decimal ↔ Octal Converter tool. #### Overview Convert base-10 (decimal) numbers into base-8 (octal) strings, and vice versa. Commonly used when configuring Unix/Linux file permissions (chmod). #### How to Use 1. Choose between Decimal to Octal, or Octal to Decimal. 2. Enter your numerical value. 3. The translated value updates instantly. #### Best Practices - Octal numbers only use digits 0 through 7. Entering an 8 or 9 will result in an invalid input error. #### FAQs **Q: Is this tool free?** A: Yes, all tools on ToolMono are 100% free. **Q: Is my data secure?** A: Absolutely. All processing is done locally in your browser. #### Security & Privacy All conversions run securely offline inside your browser. --- ### Prime Number Checker **URL**: https://toolmono.com/tools/prime-checker > Free online Prime Number Checker tool. #### Overview Quickly determine if a given integer is a prime number (a number divisible only by 1 and itself). The tool uses optimized algorithms to check large numbers rapidly. #### How to Use 1. Enter a positive integer into the input field. 2. The tool will instantly display 'Prime' or 'Not Prime'. 3. If the number is not prime, it will also display its smallest divisor. #### Best Practices - The number 1 is neither prime nor composite by mathematical definition. #### FAQs **Q: What is the maximum number I can check?** A: The checker accurately supports integers up to JavaScript's Number.MAX_SAFE_INTEGER (9,007,199,254,740,991). **Q: Is my data secure?** A: Absolutely. All processing is done locally in your browser. #### Security & Privacy Mathematical evaluations are performed strictly on the client. No numbers are logged. --- ### GCD & LCM Calculator **URL**: https://toolmono.com/tools/gcd-lcm-calculator > Free online GCD & LCM Calculator tool. #### Overview Instantly calculate the Greatest Common Divisor (GCD) and Least Common Multiple (LCM) of two or more numbers. Useful for simplifying fractions and solving algorithmic problems. #### How to Use 1. Enter a comma-separated list of numbers. 2. The calculator instantly computes the GCD and LCM for the entire set. 3. View the results in the output fields. #### Best Practices - Ensure all inputs are positive integers. The tool automatically converts negative numbers to their absolute values for these calculations. #### FAQs **Q: Can I input more than two numbers?** A: Yes, you can input a list of numbers (e.g., `12, 18, 24`), and the tool will iteratively compute the GCD and LCM for the entire set. **Q: Is my data secure?** A: Absolutely. All processing is done locally in your browser. #### Security & Privacy All recursive algorithm processing occurs directly in your browser's memory. --- ### Fibonacci Generator **URL**: https://toolmono.com/tools/fibonacci-generator > Free online Fibonacci Generator tool. #### Overview Generate sequences of the Fibonacci series, where each number is the sum of the two preceding ones. Great for mathematical exploration, algorithm testing, and Agile story pointing. #### How to Use 1. Enter the number of Fibonacci terms you want to generate (e.g., first 50 terms). 2. Alternatively, enter a target number to find all Fibonacci numbers up to that limit. 3. Copy or download the generated sequence. #### Best Practices - For very large sequences, the tool utilizes BigInt under the hood to prevent integer overflow and precision loss. #### FAQs **Q: Why do numbers look weird after the 78th term?** A: Standard numbers lose precision after 2^53. However, this tool automatically upgrades to BigInt for large terms, guaranteeing exact accuracy. **Q: Is my data secure?** A: Absolutely. All processing is done locally in your browser. #### Security & Privacy Sequence generation is executed entirely offline using client-side JavaScript. --- ### Random Number Generator **URL**: https://toolmono.com/tools/random-generator > Free online Random Number Generator tool. #### Overview Quickly generate random integers or decimals within a custom range. Perfect for statistical sampling, game development mocking, or determining lottery draws. #### How to Use 1. Set your desired minimum and maximum values. 2. Specify how many numbers you wish to generate. 3. Toggle 'Allow Duplicates' based on your needs. 4. Click Generate. #### Best Practices - If you need cryptographically secure randomness for passwords or tokens, use the [Password Generator](/tools/password-generator) or [UUID Generator](/tools/uuid-generator) instead. #### FAQs **Q: Can I generate negative numbers?** A: Yes, you can easily set the Minimum value to a negative number (e.g., Min: -100, Max: 100). **Q: Is my data secure?** A: Absolutely. All processing is done locally in your browser. #### Security & Privacy Generation is powered by local browser APIs (Math.random). No external services dictate the outcomes, ensuring fairness. --- ### Age Calculator **URL**: https://toolmono.com/tools/age-calculator > Free online Age Calculator tool. #### Overview Calculate the exact chronological age or time elapsed between a birth date and today (or any specific date). It breaks the result down into years, months, and days. #### How to Use 1. Select the starting date (e.g., Date of Birth) from the calendar picker. 2. Select the target date (defaults to Today). 3. The calculator instantly outputs the exact age in years, months, and days, along with alternative measurements (total days, total weeks). #### Best Practices - Always account for leap years when performing manual date math. This tool handles leap years automatically. #### FAQs **Q: How are months calculated?** A: Months are calculated based on calendar dates. From Jan 15 to Feb 15 is exactly 1 month, regardless of whether January had 31 days. **Q: Is my data secure?** A: Absolutely. All processing is done locally in your browser. #### Security & Privacy All date parsing and calculations are handled securely on your device. Your sensitive birth dates are never uploaded. --- ### Date Difference Calculator **URL**: https://toolmono.com/tools/date-diff-calculator > Free online Date Difference Calculator tool. #### Overview Find the exact duration between any two dates, or add/subtract time from a specific date to find a future or past date. Ideal for project management, sprint planning, and event countdowns. #### How to Use 1. To find a difference: Select 'Difference', pick Date 1 and Date 2. 2. To add/subtract time: Select 'Add/Subtract', pick a base date, and enter the number of days/weeks/months to apply. 3. The result updates instantly. #### Best Practices - When estimating project delivery dates, remember to toggle 'Exclude Weekends' if your team only works business days. #### FAQs **Q: Does it account for timezones?** A: The calculator uses your local system timezone by default to ensure the selected dates match your current calendar. **Q: Is my data secure?** A: Absolutely. All processing is done locally in your browser. #### Security & Privacy All date operations run natively via JavaScript `Date` objects inside your browser sandbox. --- ## Color Tools ### Color Converter **URL**: https://toolmono.com/tools/color-converter > Free online Color Converter tool. Convert between HEX, RGB, HSL, OKLCH, and CSS named colors. #### Overview The Color Converter is an essential utility for modern UI/UX developers. It translates colors between standard formats like HEX, RGB, HSL, and the next-generation OKLCH color space, ensuring your designs remain perfectly consistent across all platforms. #### How to Use 1. Type or paste your color into the input field (e.g., `#ff5733`, `rgb(255, 87, 51)`). 2. The tool automatically detects the input format. 3. Instantly view the converted values for HEX, RGB, HSL, and OKLCH in the output fields. 4. Click copy to securely grab the exact CSS string you need. #### Best Practices - Use OKLCH for creating highly accessible, perceptually uniform color palettes and gradients. - Use HEX codes when working with older legacy systems or design tools that do not support modern CSS color functions. - Always test your color contrast ratios for accessibility (WCAG compliance) after converting. #### FAQs **Q: Why should I use OKLCH over HSL?** A: OKLCH is perceptually uniform. In HSL, changing the hue while keeping lightness constant can result in colors that look drastically brighter or darker to the human eye. OKLCH guarantees consistent perceived lightness. **Q: Does it support alpha channels (transparency)?** A: Yes, the converter supports transparent formats like RGBA, HSLA, and 8-digit HEX codes. #### Security & Privacy All color parsing and mathematical conversions are performed entirely on your device. Your design tokens are never sent to external servers. --- ## Encoding Tools ### Base64 Encode / Decode **URL**: https://toolmono.com/tools/base64 > Free online Base64 Encode / Decode tool. Encode strings to Base64 or decode Base64 back to plain text. #### Overview The Base64 Encoder / Decoder securely translates text or binary data into a safe ASCII format. Base64 is essential for embedding images in CSS, attaching files in emails, or passing complex payloads via JSON. #### How to Use 1. Select whether you want to 'Encode' or 'Decode' via the toggle. 2. Paste your text or Base64 string into the input editor. 3. The translated output will instantly appear. 4. You can also toggle 'URL Safe Base64' for network-friendly encoding. #### Best Practices - Remember that Base64 is an encoding mechanism, not encryption. Do not use Base64 to secure or hide sensitive data. - Use URL-Safe Base64 (which replaces `+` with `-` and `/` with `_`) if you are passing the encoded string in a URL query parameter. #### FAQs **Q: Why does the encoded string end with '='?** A: The `=` characters act as padding. Base64 requires the output length to be a multiple of 4, so padding is added if the input string doesn't align perfectly. **Q: Is my data secure?** A: Absolutely. All processing is done locally in your browser. Your data is never sent to our servers. #### Security & Privacy Encoding and decoding are performed purely within your browser using native `btoa()` and `atob()` APIs. No data is sent to external servers. --- ### URL Encoder / Decoder **URL**: https://toolmono.com/tools/url-encoder > Free online URL Encoder / Decoder tool. Percent-encode and decode URLs and query string parameters. #### Overview The URL Encoder / Decoder translates text into a valid, percent-encoded format suitable for transmission over HTTP. It safely handles special characters, emojis, and reserved symbols so they don't break your query parameters or routing. #### How to Use 1. Select whether you want to 'Encode' or 'Decode'. 2. Paste your URL or parameter string into the input area. 3. The tool will instantly convert characters like spaces into `%20` or decode them back to plain text. #### Best Practices - Always URL-encode user input before injecting it into HTTP GET requests to prevent broken links and injection attacks. - Do not encode an entire URL (including `http://`), only encode the individual query parameter values. #### FAQs **Q: What is the difference between encodeURI and encodeURIComponent?** A: `encodeURI` ignores reserved characters like `?` and `&` so an entire URL remains valid. `encodeURIComponent` aggressively encodes everything, which is necessary for the actual values in a query string. **Q: Is my data secure?** A: Absolutely. All processing is done locally in your browser. Your data is never sent to our servers. #### Security & Privacy Percent-encoding is executed client-side via JavaScript's `encodeURIComponent()` API. Your URLs and query parameters remain private to your local machine. --- ## Generate Tools ### UUID Generator **URL**: https://toolmono.com/tools/uuid-generator > Free online UUID Generator tool. Generate v1, v4, and v7 UUIDs in bulk with format options. #### Overview The UUID Generator instantly creates universally unique identifiers (UUIDs) for your database records, API payloads, and testing mocks. It supports bulk generation of v1 (time-based), v4 (random), and v7 (time-sorted) UUIDs. #### How to Use 1. Select the version of UUID you need (v4 is the standard for random IDs). 2. Specify the number of UUIDs you want to generate. 3. Toggle options like Hyphens, Uppercase, or Braces depending on your syntax requirements. 4. Click Generate, then Copy or Download the list. #### Best Practices - Use UUID v4 for general-purpose, highly random identifiers (e.g., API keys, session IDs). - Use UUID v7 when using UUIDs as primary keys in relational databases (like PostgreSQL) to prevent index fragmentation. #### FAQs **Q: What is the difference between v4 and v7?** A: v4 is entirely random. v7 includes a Unix timestamp at the beginning, meaning they are chronologically sortable, which is better for database performance. **Q: Is my data secure?** A: Absolutely. All processing is done locally in your browser. Your data is never sent to our servers. #### Security & Privacy UUIDs are generated entirely client-side using the secure `crypto.randomUUID()` API. No generated IDs are ever logged or transmitted, ensuring absolute collision privacy. --- ### Password Generator **URL**: https://toolmono.com/tools/password-generator > Free online Password Generator tool. Generate cryptographically secure passwords with custom rules. #### Overview The Password Generator creates cryptographically secure passwords and passphrases. It is perfect for developers needing to generate strong database credentials, API secrets, or testing user accounts without relying on insecure third-party APIs. #### How to Use 1. Set the desired password length using the slider. 2. Toggle the character sets you want to include (Uppercase, Lowercase, Numbers, Symbols). 3. Click Generate to create a new password. 4. Click Copy to securely save it to your clipboard. #### Best Practices - For critical systems, use a length of at least 24 characters with all character sets enabled. - Avoid using passwords that you have memorized for automated systems; rely on password managers or vaults instead. #### FAQs **Q: Are these passwords truly random?** A: Yes, we use cryptographically secure pseudorandom number generators (CSPRNG) provided by modern browsers, not the standard Math.random(). **Q: Is my data secure?** A: Absolutely. All processing is done locally in your browser. Your data is never sent to our servers. #### Security & Privacy Passwords are generated completely offline in your browser using the `crypto.getRandomValues()` API. We do not store, log, or transmit any generated passwords. --- ### Lorem Ipsum **URL**: https://toolmono.com/tools/lorem-ipsum-generator > Free online Lorem Ipsum tool. Generate placeholder text with customizable paragraphs and words. #### Overview The Lorem Ipsum Generator instantly creates standard placeholder text for your mockups, wireframes, and prototypes. It allows you to generate exact lengths (by paragraphs, words, or bytes) so your designs perfectly mimic real-world content. #### How to Use 1. Select whether you want to generate text by Paragraphs, Words, or Bytes. 2. Enter the desired amount. 3. Click Generate, and then copy the resulting text to your clipboard. #### Best Practices - Use realistic paragraph lengths (usually 3-5 sentences) to accurately simulate article layouts. - Avoid using purely English placeholder text if your application needs to support internationalization; consider using varied character sets. #### FAQs **Q: Is the generated text always the same?** A: No, the tool uses a randomized algorithm to ensure the placeholder text looks organic and natural in your designs. **Q: Can I use this for commercial projects?** A: Yes, the generated Lorem Ipsum text is public domain and free to use anywhere. #### Security & Privacy The generation algorithm runs entirely in your browser. No external API calls are made. --- ### Mock Data Generator **URL**: https://toolmono.com/tools/mock-data-generator > Free online Mock Data Generator tool. Generate realistic mock data using Faker API for testing. #### Overview The Mock Data Generator allows you to instantly generate realistic JSON data for testing APIs, populating databases, or mocking UI components. It leverages standard faker data to ensure your prototypes look like real-world applications. #### How to Use 1. Define your data schema by adding fields (e.g., id, firstName, email). 2. Select the data type for each field from the Faker categories. 3. Set the number of rows you wish to generate. 4. Click Generate, then export as JSON or CSV. #### Best Practices - Use realistic mock data to catch UI overflow bugs early (e.g., generating very long names or addresses). - Generate a large dataset (1,000+ rows) to test the performance of your data tables and virtualized lists. #### FAQs **Q: Can I define custom nested schemas?** A: Currently, the generator outputs flat JSON arrays. For nested schemas, we recommend generating relational flat files and combining them programmatically. **Q: Is my data secure?** A: Absolutely. All processing is done locally in your browser. Your data is never sent to our servers. #### Security & Privacy All data is generated locally using client-side JavaScript. No external API calls are made, and your custom schemas remain entirely private. --- ### JSON Schema Generator **URL**: https://toolmono.com/tools/json-schema-generator > Free online JSON Schema Generator tool. Generate JSON schema from JSON payload. #### Overview The JSON Schema Generator infers a strict JSON Schema (Draft 7) from any given JSON payload. This is essential for generating validation logic, writing API documentation (OpenAPI/Swagger), or strongly typing your payloads. #### How to Use 1. Paste a sample JSON object or array into the input editor. 2. The tool will automatically analyze the data types, nesting, and properties. 3. A valid JSON Schema will be generated in the output editor. 4. Copy or download the schema for use in your validators. #### Best Practices - Provide a comprehensive sample JSON payload so the generator can accurately determine if a field is an array, object, or nullable. - Manually review the generated schema to add constraints like `minLength`, `pattern`, or `required` fields that cannot be inferred from a single sample. #### FAQs **Q: Does it support OpenAPI format?** A: The generated schema follows standard JSON Schema Draft 7, which is highly compatible with modern OpenAPI (Swagger) 3.0 definitions. **Q: Is my data secure?** A: Absolutely. All processing is done locally in your browser. Your data is never sent to our servers. #### Security & Privacy Schema inference happens entirely in your browser using AST parsing. Your proprietary API payloads are never uploaded or logged. --- ### QR Code Generator **URL**: https://toolmono.com/tools/qr-code-generator > Free online QR Code Generator tool. Generate and download QR codes. #### Overview The QR Code Generator instantly creates high-quality, downloadable QR codes from URLs, text, Wi-Fi configurations, or contact data. It is perfect for print media, mobile app pairing, or physical marketing campaigns. #### How to Use 1. Enter your target URL or text into the input field. 2. Adjust the size, foreground color, and background color if desired. 3. Select the error correction level (Low, Medium, Quartile, High). 4. Click Download to save the QR code as a PNG or SVG. #### Best Practices - Always test your generated QR code with a mobile device before printing it on physical materials. - Use High (H) error correction if you plan to place a logo in the center of the QR code, as it allows up to 30% of the code to be obscured. #### FAQs **Q: What is Error Correction?** A: Error correction adds redundant data to the QR code. Higher levels make the code look denser but ensure it remains readable even if it gets scratched or partially covered. **Q: Is my data secure?** A: Absolutely. All processing is done locally in your browser. Your data is never sent to our servers. #### Security & Privacy QR generation uses a client-side canvas renderer. No text, URLs, or Wi-Fi credentials are sent to our servers. --- ### QR Code Reader **URL**: https://toolmono.com/tools/qr-code-reader > Free online QR Code Reader tool. Read data from QR code images. #### Overview The QR Code Reader instantly decodes information hidden within a QR code image. It is perfect for extracting long URLs, Wi-Fi passwords, or tracking codes without needing to use your smartphone. #### How to Use 1. Upload a QR code image (PNG, JPG, WebP) by dragging and dropping it into the dropzone. 2. Alternatively, paste an image directly from your clipboard. 3. The tool will instantly scan the image and display the decoded text or URL. #### Best Practices - Always inspect URLs extracted from untrusted QR codes for phishing attempts before navigating to them. - Ensure your uploaded image has decent contrast and isn't too blurry for optimal scanning. #### FAQs **Q: Does it support barcodes?** A: Currently, this tool is specifically optimized for standard 2D QR codes, not 1D barcodes like UPC or EAN. **Q: Is my data secure?** A: Absolutely. All processing is done locally in your browser. Your data is never sent to our servers. #### Security & Privacy The image scanning uses a client-side WebAssembly parser. Your images are never uploaded to a server, ensuring complete privacy. --- ## Diff Tools ### Text Diff **URL**: https://toolmono.com/tools/text-diff > Free online Text Diff tool. Compare two text blocks side-by-side and highlight the differences. #### Overview The Text Diff tool is a blazing-fast utility for comparing two raw text blocks or code snippets side-by-side. It highlights insertions, deletions, and modifications to help you track changes between versions without leaving your browser. #### How to Use 1. Paste your original text or code into the left editor panel. 2. Paste your modified text or code into the right editor panel. 3. The tool instantly computes the delta and highlights the differences. 4. Toggle settings like 'Ignore Whitespace' if you only care about logic changes. #### Best Practices - Enable 'Ignore Whitespace' when comparing code that might have been reformatted by different linters (like Prettier). - For comparing multiple files or entire repositories, use the [Project Diff Viewer](/tools/project-diff-viewer) instead. #### FAQs **Q: Does this support syntax highlighting?** A: Yes, the diff editor automatically detects the language based on the content and provides rich syntax highlighting. **Q: Is my source code secure?** A: Absolutely. All comparison is done in your browser's memory. Your source code is never transmitted to our servers. #### Security & Privacy All text diffing is powered by the Monaco Editor running locally in your browser. Your proprietary code snippets are never transmitted over the internet. --- ### JSON Diff **URL**: https://toolmono.com/tools/json-diff-checker > Free online JSON Diff tool. Compare two JSON objects side-by-side and highlight the differences. #### Overview The JSON Diff Checker is a specialized tool for deeply comparing two JSON objects. Unlike standard text diffs, it safely formats, sorts keys, and highlights logical data structure changes, making it effortless to track API payload modifications. #### How to Use 1. Paste your original JSON object into the left editor. 2. Paste your modified JSON object into the right editor. 3. The tool will automatically parse, format, and highlight added, removed, or changed properties. 4. Use the toolbar to collapse unchanged objects for easier reading. #### Best Practices - Ensure both JSON inputs are syntactically valid. The tool will attempt to format them automatically to make comparison deterministic. - If you are comparing non-JSON configurations, fall back to the standard [Text Diff](/tools/text-diff) tool. #### FAQs **Q: Why is it better than a normal Text Diff?** A: Standard text diffs struggle if JSON keys are in a different order or if spacing varies. The JSON Diff Checker parses the actual data structure first, ensuring you only see meaningful changes. **Q: Is my data secure?** A: Absolutely. All processing is done locally in your browser. Your data is never sent to our servers. #### Security & Privacy JSON parsing and diff calculation happen entirely client-side. Your sensitive API responses and configuration payloads are never uploaded. --- ### Project Diff **URL**: https://toolmono.com/tools/project-diff-viewer > Free online Project Diff tool. Compare two project directories or multiple files side-by-side without uploading to a server. #### Overview The Project Diff Viewer is a fast and secure developer utility that allows you to easily compare entire folders or multiple files. It supports massive scale, handling thousands of files instantly. All processing happens entirely in your browser, ensuring your source code remains private and secure. #### How to Use 1. Upload your original folder or files to the left panel (you can drag and drop). 2. Upload your modified folder or files to the right panel. 3. Select your preferred options (e.g., Ignore Whitespace). 4. Click 'Compare Projects' to instantly view the differences. 5. Use the Export button to save an HTML or JSON report. #### Best Practices - Ideal for reviewing massive changes before committing. - Great for auditing third-party code modifications. - Use the 'Ignore Whitespace' option when comparing code formatted with different linters. #### FAQs **Q: Is this Project Diff tool free?** A: Yes, all tools on ToolMono are 100% free to use with no limits. **Q: Is my source code secure?** A: Absolutely. All file reading and comparison is done entirely in your browser's memory. Your source code is never transmitted over the internet. **Q: Can it handle huge projects?** A: Yes! The tool uses advanced lazy-chunking and asynchronous diffing to handle projects containing thousands of files smoothly. #### Security & Privacy Everything is processed strictly locally in your browser using the File System API. No source code is ever uploaded to a server. --- ## Project Tools Tools ### Package.json Explorer **URL**: https://toolmono.com/tools/package-json-explorer > Free online Package.json Explorer. Upload, paste, and validate your package.json dependencies and scripts. #### Overview The Package.json Explorer allows you to quickly inspect and validate your Node.js package.json files. Whether you are troubleshooting dependency issues, checking script configurations, or validating raw JSON, this tool handles it entirely in your browser. #### How to Use 1. Select the 'Upload' tab to drag and drop a package.json file. 2. Or, select the 'Paste JSON' tab to manually paste your file contents. 3. Click 'Load Sample' if you just want to test the tool with dummy data. 4. Click 'Validate' to ensure the JSON is structurally sound. #### Best Practices - Always validate your package.json after manually resolving git merge conflicts. #### FAQs **Q: Can it install dependencies?** A: No, this tool only validates the syntax of the JSON file. **Q: Is my code secure?** A: Absolutely. All processing is done locally in your browser. #### Security & Privacy All parsing and validation runs natively inside your browser. Your configuration files are never sent to a server. --- ### Requirements.txt Analyzer **URL**: https://toolmono.com/tools/requirements-txt-analyzer > Free online Requirements.txt Analyzer. Parse Python dependencies, detect project stacks, find duplicate packages, and export JSON/HTML reports instantly. #### Overview The Requirements.txt Analyzer is a robust, client-side tool designed to parse, validate, and extract deep insights from your Python dependency files. It helps you identify framework stacks, detect duplicate constraints, flag unpinned packages, and export comprehensive project reports. #### How to Use 1. Select 'Upload File' to drag and drop your requirements.txt, or use 'Paste Text' to enter it manually. 2. Click 'Validate' to instantly parse your dependency tree. 3. Review the 'Project Insights' dashboard to see your detected frameworks, stacks, and health recommendations. 4. Use the interactive table to search, sort, and filter your dependencies by constraint type (Pinned, Range, Git, Editable). 5. Click the export buttons to download a JSON Summary, Markdown Summary, or a standalone HTML Report. #### Best Practices - Pin all production dependencies using '==' to ensure deterministic builds across environments. - Use a virtual environment to test your dependencies before deploying. - For complex projects, consider using tools like pip-tools or Poetry to manage dependency graphs. - Regularly audit your dependencies for security vulnerabilities using tools like pip-audit. #### FAQs **Q: Does this tool install packages?** A: No, this tool statically analyzes the text file and does not interact with your Python environment. **Q: Are Git and Local paths supported?** A: Yes, the parser natively handles -e editable installs, direct Git URLs (git+https), and local directory paths. **Q: Can I use this offline?** A: Yes. Once the page is loaded, the entire parser and export engine works completely offline. #### Security & Privacy Security is paramount. The Requirements.txt Analyzer performs 100% of its parsing and generation directly in your browser. Your dependencies and codebase structure are never uploaded to any external server. --- ### Import Sort Preview **URL**: https://toolmono.com/tools/import-sort-preview > Free online Import Sort Preview tool. See how your source code imports will be organized and sorted for languages like JavaScript, TypeScript, Python, Go, and Java. #### Overview The Import Sort Preview tool lets you upload or paste your source code and instantly preview how your imports would be cleanly sorted and organized according to standard community conventions. #### How to Use 1. Select the 'Upload' tab to drag and drop a source file, or select the 'Paste Code' tab to enter it manually. 2. Choose the programming language from the dropdown, or let the tool auto-detect it based on file extension. 3. Click 'Preview' to see the sorted results alongside your original code. #### Best Practices - Use organized imports to reduce merge conflicts and improve code readability. - Configure your IDE or CI pipeline to enforce import sorting automatically. #### FAQs **Q: Which languages are supported?** A: Currently, we support JavaScript, TypeScript, Python, Go, and Java. **Q: Does this save the file to my computer?** A: No, this is purely a preview tool. You can copy the sorted result manually. #### Security & Privacy All formatting logic runs natively inside your browser. Your source code is never sent to a server. --- ### Dependency Tree Viewer **URL**: https://toolmono.com/tools/dependency-tree-viewer > Free online Dependency Tree Viewer tool. Visualize, analyze, and export your dependency graph from package.json, package-lock.json, or requirements.txt. #### Overview The Dependency Tree Viewer is a powerful utility that parses your project's dependency files (`package.json`, `package-lock.json`, or `requirements.txt`) and visualizes the full dependency graph. It surfaces hidden metrics, identifies potential security and stability issues (like unpinned versions or editable installs), and allows you to export your data for reporting—all natively within your browser. #### How to Use 1. Select the 'Upload' tab to drag and drop your dependency file (e.g., package-lock.json). 2. Alternatively, select the 'Paste Text' tab to manually paste your file contents. 3. Click 'Validate' to parse the input and generate the dependency graph. 4. Toggle between 'Grouped View', 'Tree View', and 'Graph View' to explore the hierarchy. 5. Review the 'Dependency Insights' panel for metrics, duplicates, and unpinned packages. 6. Click one of the 'Export' buttons to download a JSON, Markdown, or HTML report. #### Best Practices - Always use lockfiles (like `package-lock.json`) for visualization when possible, as they provide the true hierarchical graph rather than just top-level declarations. - Ensure all production dependencies in `requirements.txt` are strictly pinned using `==` to guarantee reproducible builds. - Avoid leaving editable installs (`-e`) in your dependency files before deploying to production environments. #### FAQs **Q: Does it support yarn.lock or pnpm-lock.yaml?** A: Currently, it primarily focuses on package.json, package-lock.json (v2/v3), and Python requirements.txt. **Q: Is my data secure?** A: Absolutely. All processing is done locally in your browser, and the exporting relies entirely on client-side Blob generation. **Q: Why is the Graph View slow on my project?** A: Directed acyclic graphs (DAGs) require intense layout calculations. If your project has thousands of dependencies, the Graph View might take a moment to compute. Switch to the Tree View for instantaneous rendering of massive trees. #### Security & Privacy All parsing, validation, and visualization runs strictly natively inside your browser. No data, files, or proprietary code is ever transmitted to a server. --- ### Dependency License Analyzer **URL**: https://toolmono.com/tools/dependency-license-analyzer > Analyze dependency licenses from package.json and requirements.txt. Detect MIT, Apache, GPL, BSD, ISC, and other common licenses. Export reports securely in your browser. #### Overview The Dependency License Analyzer is a comprehensive utility that parses your project's dependency files (like `package.json` for Node.js or `requirements.txt` for Python) to analyze the open-source licenses of the packages you use. It categorizes licenses into risk levels (Permissive, Weak Copyleft, Strong Copyleft) and highlights potential compliance concerns to help you audit your dependencies securely and entirely offline. #### How to Use 1. Select the 'Upload' tab to drag and drop your dependency file. 2. Alternatively, select the 'Paste Text' tab to manually paste your file contents. 3. Click 'Analyze Licenses' to parse the input and resolve the dependency licenses. 4. Use the License Summary Dashboard to view your aggregated risk metrics. 5. Use the Filters (by Type, License, or Risk Level) and Sorting features on the data table to isolate specific packages. 6. Click the Export Data buttons to download a JSON, Markdown, HTML, or CSV compliance report. #### Best Practices - Always review the 'Unknown' licenses manually, as the tool relies on a static offline heuristics engine. - Generate and store an HTML or Markdown export of your license report before each major production release for compliance auditing. - Remember that this tool provides informational analysis based on deterministic rules and is NOT legal advice. Always consult with legal counsel for complex compliance questions. - Analyze your dependency licenses frequently to catch problematic copyleft licenses before they become deeply integrated into your proprietary codebase. #### FAQs **Q: What are dependency licenses?** A: Dependency licenses are the legal terms under which the open-source packages you use are distributed. They dictate what you can and cannot do with that software. **Q: What package managers are supported?** A: Currently, it supports dependencies listed in package.json (Node.js) and requirements.txt (Python). The architecture is designed to support more formats like lockfiles and SBOMs in the future. **Q: How does it detect licenses without network requests?** A: The tool ships with a hardcoded, offline heuristic map of the top 50,000+ most popular packages on npm and PyPI. This guarantees blazing-fast, secure results without API limits. **Q: Is this legal advice?** A: No. The ToolMono Dependency License Analyzer provides educational, informational analysis based on deterministic rules. It does NOT constitute legal advice. **Q: Is my data secure?** A: Absolutely. All processing is done locally in your browser. #### Security & Privacy All parsing and heuristic license matching runs securely and locally in your browser. Your private configuration files and proprietary dependencies are never sent to a server. --- ## PDF Tools ### PDF to Markdown **URL**: https://toolmono.com/tools/pdf-to-markdown > Free, local PDF to Markdown converter. Extract text, metadata, and document statistics. Export as Markdown, HTML, Plain Text, or JSON entirely within your browser. #### Overview The PDF to Markdown converter allows you to seamlessly transform standard PDF documents into easy-to-read, editable Markdown files. Using advanced, fully local heuristics, this tool extracts your text while intelligently preserving headings, paragraphs, lists, links, and basic tables—all without relying on artificial intelligence or network requests. #### How to Use 1. Upload a PDF file by dragging and dropping it, or click the upload area to browse your device. 2. Wait a few seconds while the entirely local engine extracts the text and maps the coordinate structure. 3. Review the extraction status, document metadata (e.g. Author, Title), and comprehensive text statistics in the left panel. 4. Use the 'Edit' tab in the right panel to tweak the raw generated Markdown. 5. Use the 'Preview' tab to verify the formatted layout (GitHub-flavored Markdown). 6. Download your data via the export buttons as `.md`, `.html`, `.txt`, or a unified `-summary.json` payload. #### Best Practices - Ensure your PDF is text-based. Scanned images inside PDFs cannot currently be parsed into markdown without OCR. - Always review the generated Markdown using the 'Preview' tab to catch minor heuristic inaccuracies (e.g., complex tables). #### FAQs **Q: Can it extract images from the PDF?** A: Currently, this tool extracts only text and links. Images and complex layouts are omitted to focus on clean textual Markdown. **Q: Why does my table look broken?** A: PDFs do not inherently store table structure, only text coordinates. We use heuristic spacing logic to reconstruct simple tables, but complex tables with merged cells may render as spaced text. **Q: Is my data secure?** A: Absolutely. All processing is 100% offline and localized inside your browser's memory. #### Security & Privacy All parsing and Markdown generation happens entirely in your browser using `pdfjs-dist`. Your sensitive PDF files and extracted data are completely secure and are never transmitted to external servers. --- ### PDF to JSON **URL**: https://toolmono.com/tools/pdf-to-json > Free online PDF to JSON converter. Upload a PDF and extract its text, structure, tables, and metadata into a deeply nested JSON format instantly in your browser. #### Overview The PDF to JSON extractor maps the unstructured visual layout of standard PDF documents into a strict, deeply nested JSON hierarchy. It calculates structural boundaries (like pages, paragraphs, lists, and tables) directly from the raw PDF rendering coordinates. #### How to Use 1. Upload a PDF file by dragging and dropping it, or click to browse. 2. Review the extracted document metadata and calculated statistics in the left panel. 3. Inspect the generated JSON payload inside the interactive code editor on the right. 4. Use the 'Format' or 'Minify' buttons to organize the output, then click Download to save your `.json` file. #### Best Practices - Use the 'Min JSON' export option if you are piping the resulting data directly into a downstream database or API to save bandwidth. - Large PDFs can generate massive JSON objects. Use the Monaco editor's code folding features (clicking the arrows on the left gutter) to collapse large arrays and navigate the structure easily. #### FAQs **Q: How does it detect tables?** A: PDFs do not natively store table tags. The engine uses a layout heuristic that measures the horizontal whitespace between text blocks on the same Y-axis to guess table cell boundaries. **Q: Is my data secure?** A: Absolutely. All processing is 100% offline and localized inside your browser's memory. #### Security & Privacy All parsing happens entirely in your browser using `pdfjs-dist`. Your sensitive PDF files and their extracted JSON payloads are entirely secure and are never transmitted over the network. --- ### PDF to Text **URL**: https://toolmono.com/tools/pdf-to-text > Free online PDF to Text converter. Upload a PDF and extract its plain text instantly in your browser while preserving formatting, paragraphs, and reading order. #### Overview The PDF to Text extractor strips out all visual styling from standard PDF documents and outputs incredibly clean, raw string data. It uses smart spatial heuristics to preserve reading order and paragraph spacing without resorting to unpredictable Markdown syntaxes. #### How to Use 1. Upload a PDF file by dragging and dropping it, or click to browse. 2. Review the extracted document metadata and real-time statistics (word counts, reading time, etc) in the left panel. 3. Inspect the pure text payload inside the interactive code editor on the right. 4. Use the native Monaco search (Ctrl+F) to highlight matches, or use the header buttons to export your data into .txt, .md, .json, or .html reports. #### Best Practices - Use this tool when you need pure, unformatted string data. If you need structural hierarchies (like Headings or Tables), use the '[PDF to Markdown](/tools/pdf-to-markdown)' or '[PDF to JSON](/tools/pdf-to-json)' tools instead. #### FAQs **Q: How does it preserve paragraphs?** A: The extraction engine calculates the median font size of the document. If it detects a vertical Y-axis gap larger than 2x the font size, it smartly inserts a double line break. **Q: Is my data secure?** A: Absolutely. All processing is 100% offline and localized inside your browser's memory. #### Security & Privacy All parsing happens entirely in your browser using `pdfjs-dist`. Your sensitive PDF files are never sent to external servers and extraction occurs completely offline. --- ### PDF Metadata Viewer **URL**: https://toolmono.com/tools/pdf-metadata-viewer > Free offline PDF Metadata Viewer. Instantly extract and inspect hidden properties, author info, creation dates, encryption states, and raw XMP payloads securely in your browser. #### Overview The **PDF Metadata Viewer** is a professional diagnostic tool that instantly surfaces all hidden properties embedded within a PDF document. Whether you need to audit document origins, verify accessibility tagging, or debug web-streaming optimization (Linearization), this tool extracts everything locally with zero server uploads. #### How to Use 1. **Upload a PDF:** Drag and drop your `.pdf` file into the upload zone or click to browse your local machine. 2. **Inspect the Dashboard:** The engine will instantly parse the document envelope and render the metadata across 6 categorized accordions. 3. **Search:** Use the live search bar to instantly filter the dashboard down to specific keys or values. 4. **Export:** Click the *Copy All* button or use the *Download* buttons to extract the metadata into JSON, CSV, Markdown, or HTML formats. #### Best Practices - **Sanitize Before Publishing:** Use this viewer as a final QA check to ensure you haven't accidentally leaked internal employee names, custom software paths, or raw XMP tags before distributing a PDF to the public. - **Check Tagging:** If you are publishing government or educational materials, always verify the *Tagged PDF (AcroForm)* property is 'Yes' to ensure compatibility with screen readers. #### FAQs **Q: Can it extract metadata from Password Protected PDFs?** A: No. If a PDF is securely encrypted with a user password, the internal metadata envelope is also locked. You must remove the password before inspecting it. **Q: What is XMP Metadata?** A: XMP (Extensible Metadata Platform) is an XML-based standard created by Adobe for embedding structured data into files. Our tool detects raw XMP payloads and exposes them in a dedicated code viewer. **Q: Are my files secure?** A: Absolutely. 100% of the extraction logic runs entirely on your local machine. Nothing is ever uploaded to a server. #### Security & Privacy All metadata extraction happens locally in your browser memory using the `pdfjs-dist` core engine. Your sensitive PDF files are never sent over the internet, and no tracking APIs are used to log your document properties. --- ### PDF Table Extractor **URL**: https://toolmono.com/tools/pdf-table-extractor > Free online PDF Table Extractor. Upload a PDF to automatically extract, edit, and export embedded tables into CSV, Excel, JSON, Markdown, or HTML. #### Overview The **PDF Table Extractor** is a powerful, fully-offline engine that parses geometric layouts in PDF documents to reconstruct embedded tables. Unlike simple text extractors, it gives you a fully interactive spreadsheet UI where you can edit data, delete rows, trim empty cells, and instantly export to multiple formats. #### How to Use 1. **Upload a PDF:** Drag and drop your `.pdf` file into the upload zone or click to browse. 2. **Navigate Tables:** Once parsed, use the top navigation bar to jump between detected tables. 3. **Edit Data:** Double-click any cell or header to edit it inline. 4. **Clean Data:** Use the 'Trim Empty' button to automatically remove completely blank rows and columns. 5. **Export:** Click CSV, Excel, JSON, MD, or HTML to view a syntax-highlighted preview of your converted data before downloading. #### Best Practices - **Use Excel CSV for Special Characters:** If your PDF contains currency symbols or foreign characters, use the 'Excel' export instead of standard 'CSV' to ensure the UTF-8 BOM is preserved. - **Verify Headers:** PDF geometric extraction can sometimes merge a title into a header. Double-click to fix it before exporting to JSON (since JSON uses headers as object keys). #### FAQs **Q: Why does it export multiple tables separately?** A: PDFs do not have a native concept of 'Tables'. Our engine groups text geometrically. If a table breaks across a page, it is treated as a separate geometric cluster. You can export both and merge them in Excel. **Q: What is 'Excel-compatible CSV'?** A: Standard CSV files can lose special characters (like € or £) when opened in Microsoft Excel. Our Excel export explicitly prepends a UTF-8 Byte Order Mark (BOM) to force Excel to read the encoding correctly. **Q: Can it extract tables from scanned images?** A: No. This tool parses the internal text rendering vectors of digital PDFs. It does not perform Optical Character Recognition (OCR) on flat images. **Q: Are my files secure?** A: Absolutely. 100% of the extraction logic runs entirely on your local machine. Nothing is ever uploaded to a server. #### Security & Privacy All document parsing, data editing, and file exporting happens entirely in your local browser memory using the `pdfjs-dist` core engine. Your sensitive PDF files and financial data are never sent over the internet. --- ### PDF Search & Extract **URL**: https://toolmono.com/tools/pdf-search-extract > Free online PDF Search tool. Upload a PDF and instantly search for text, regex patterns, and extract matching paragraphs. #### Overview The **PDF Search & Extract** tool allows you to upload a PDF document and perform deep text and regex pattern searches across all pages entirely locally in your browser. Unlike standard PDF viewers, this tool empowers you to extract all matching paragraphs, matched pages, or custom page ranges into a structured format (JSON, Markdown, or HTML Report) for further analysis. #### How to Use 1. **Upload a PDF:** Drag and drop your `.pdf` file into the upload zone or click to browse. 2. **Configure Search:** Enter your query and toggle Exact Phrase, Case Sensitivity, or Regex. 3. **Navigate Matches:** Use the accordion or Up/Down arrows to jump directly to specific matches in context. 4. **View Full Page:** Click on any highlighted snippet to read the entire extracted page text. 5. **Export Data:** Switch to the 'Export Data' tab to extract Matching Paragraphs, Matching Pages, or specific page ranges into Plain Text, Markdown, JSON, or an HTML Report. #### Best Practices - Use Regular Expressions (Regex) for complex queries like matching emails or phone numbers. - Switch to the 'Export Data' tab if you are searching a massive document and just want the raw data in a single view. #### FAQs **Q: Why didn't it find text in my scanned PDF?** A: This tool relies on digital text layers (vectors) within the PDF. If your PDF is a flat scanned image, it lacks a text layer and cannot be searched without OCR. **Q: Are my documents uploaded?** A: No. Everything runs strictly locally via JavaScript (pdf.js) in your browser. **Q: Can I extract tables using this tool?** A: This tool extracts text and paragraphs. For geometric table extraction, please use our [PDF Table Extractor](/tools/pdf-table-extractor) tool. #### Security & Privacy 100% Secure & Private. All PDF parsing, text extraction, searching, and exporting happens entirely in your browser's local memory. Your sensitive files are never uploaded to any server. --- ### Merge PDF **URL**: https://toolmono.com/tools/merge-pdf > Free online PDF Merge tool. Upload multiple PDFs, select specific pages, reorder visually, and combine them effortlessly right in your browser. #### Overview The **Merge PDF** tool empowers you to upload multiple PDF files, visually arrange their order via drag-and-drop, and fuse them into a single document. Engineered for privacy, all complex PDF manipulation executes entirely inside your browser's local sandbox—no file ever leaves your device. #### How to Use 1. **Upload PDFs:** Drag and drop your `.pdf` files into the upload zone or click to browse. 2. **Reorder visually:** Grab any file by its handle and drag it up or down to set the exact merge sequence. 3. **Adjust Settings:** Decide if you want to merge entire documents or specify pinpoint page ranges (like '1-5, 8'). 4. **Merge & Export:** Click 'Merge PDFs' to combine them. Finally, rename and download your consolidated file. #### Best Practices - Use the visual thumbnails to double-check that you're merging the right documents. - If file size is a concern, ensure 'Optimize Output Size' is toggled on to compress the internal PDF object streams. #### FAQs **Q: Are my documents uploaded to a server?** A: No. Everything runs strictly locally via JavaScript (pdf-lib) in your browser. **Q: Is there a limit on how many PDFs I can merge?** A: There's no hard limit, though very large files (hundreds of megabytes) might cause your browser tab to run out of memory. **Q: Can I copy the original bookmarks (outlines)?** A: Currently, our local merge engine does not support migrating structural bookmarks across documents. #### Security & Privacy 100% Secure & Private. All PDF parsing, thumbnail generation, and merging occurs entirely within your browser's local memory. Your sensitive documents are never uploaded to our servers, keeping you compliant with strict data policies. --- ### Split PDF **URL**: https://toolmono.com/tools/split-pdf > Free online PDF Split tool. Upload a PDF, select pages, and split them effortlessly right in your browser. #### Overview The **Split PDF** tool empowers you to extract specific pages from a PDF document or divide it entirely into multiple files. Engineered for privacy, all complex PDF manipulation executes entirely inside your browser's local sandbox—no file ever leaves your device. #### How to Use 1. **Upload PDF:** Drag and drop your `.pdf` file into the upload zone or click to browse. 2. **Select Split Mode:** Choose how you want to divide the file (e.g., Extract Every Page, Fixed Number, Custom Ranges, or select pages visually from the grid). 3. **Configure Output:** Decide if you want to preserve the original metadata and optimize the output size. 4. **Split and Download:** Click 'Split PDF'. You can then rename individual files, download them separately, or download a bulk ZIP archive. #### Best Practices - Use the visual page grid to select pages if you aren't exactly sure which page numbers you need. It supports lazy loading, so even massive PDFs scroll smoothly. - Keep 'Preserve Metadata' checked if the author and title of the original document are important for your extracted files. #### FAQs **Q: Are my documents uploaded to a server?** A: No. Everything runs strictly locally via JavaScript in your browser. **Q: What is the maximum file size I can split?** A: The tool supports files up to 100MB, restricted primarily by your browser's available RAM. **Q: Can I split password-protected PDFs?** A: Currently, encrypted or password-protected PDFs are not supported and must be unlocked before splitting. #### Security & Privacy 100% Secure & Private. All PDF parsing and splitting occurs entirely within your browser's local memory. Your sensitive documents are never uploaded to any remote servers, keeping you compliant with strict data policies. --- ### Rotate PDF **URL**: https://toolmono.com/tools/rotate-pdf > Free online PDF Rotate tool. Upload a PDF and permanently rotate individual pages or the entire document securely in your browser. #### Overview The Rotate PDF tool allows you to permanently change the orientation of individual pages or entire documents. Whether you need to fix upside-down scanned pages or align landscape charts into a portrait document, this tool offers surgical precision. All processing is strictly local to your browser for ultimate privacy. #### How to Use 1. Drag and drop your `.pdf` file into the upload zone. 2. Choose whether you want to target all pages, odd pages, even pages, or manually select specific pages. 3. Click the Right 90°, Left 90°, or Flip 180° action buttons to apply orientation changes to your selected scope. 4. Preview the real-time changes in the visual grid below. 5. Click 'Rotate PDF' to finalize the orientation and instantly save the modified file. #### Best Practices - Take advantage of the visual grid. You can manually preview the rotation of every page before finalizing the export. - Leave the 'Preserve Metadata' option checked unless you specifically want to anonymize the document by wiping the Author and Title fields. #### FAQs **Q: Are my documents uploaded to a server?** A: No. Everything runs strictly locally via JavaScript in your browser. **Q: Will the rotation degrade the text or image quality?** A: No. The orientation changes are applied mathematically to the internal PDF structure without re-rendering or compressing any underlying assets. Quality is 100% preserved. **Q: Can I rotate password-protected PDFs?** A: Currently, encrypted or password-protected PDFs are not supported. Please unlock them first. #### Security & Privacy 100% Secure & Private. All PDF rotation occurs entirely within your browser's local memory. Your sensitive documents are never uploaded to any external servers. --- ### Extract PDF Pages **URL**: https://toolmono.com/tools/extract-pdf-pages > Free online PDF Extraction tool. Upload a PDF and extract specific pages to create a new document securely in your browser. #### Overview The **Extract PDF Pages** tool allows you to pull specific pages out of a larger PDF document and save them as a brand new file. Whether you need to grab a single invoice from a massive monthly report or extract specific chapters from a textbook, this tool gives you surgical precision. All processing is strictly local to your browser for ultimate privacy. #### How to Use 1. **Upload PDF:** Drag and drop your `.pdf` file into the upload zone or click to browse. 2. **Select Pages:** Use the visual grid to click and highlight thumbnails, or type page numbers (e.g., `1-5, 8`) into the settings panel. 3. **Advanced Toggles:** Choose whether to preserve or strip out the original document's metadata, annotations, and page rotations. 4. **Download:** Hit 'Extract Pages' to instantly slice your document and download the finalized PDF. #### Best Practices - Use the native OS shift-click shortcut on the visual grid to select large continuous blocks of pages instantly. - Uncheck 'Preserve Metadata' if you want to explicitly wipe the Title and Author properties from the newly extracted document for anonymity. #### FAQs **Q: Are my documents uploaded to a server?** A: No. Everything runs strictly locally via JavaScript in your browser. Disconnect from the internet and the tool will still work flawlessly! **Q: Can I extract pages from password-protected PDFs?** A: Currently, encrypted or password-protected PDFs are not supported and must be unlocked before extraction. **Q: Will extracting pages reduce the quality of the text or images?** A: No. The pages are copied exactly at a binary level. The quality is 100% preserved. #### Security & Privacy 100% Secure & Private. All PDF extraction occurs entirely within your browser's local memory. Your sensitive documents are never uploaded to any remote servers, keeping you compliant with strict data policies. --- ### Reorder PDF Pages **URL**: https://toolmono.com/tools/reorder-pdf-pages > Free online PDF Reorder tool. Upload a PDF and drag and drop pages to change their order securely in your browser. #### Overview The **Reorder PDF Pages** tool is an advanced Visual PDF Editor that allows you to easily rearrange, duplicate, rotate, and swap pages within a PDF document using an intuitive drag-and-drop interface. Whether you need to fix a mixed-up scanned document or build a complex presentation from multiple sources, this tool gives you absolute control. All processing is strictly local to your browser for ultimate privacy. #### How to Use 1. **Upload PDF:** Drag and drop your `.pdf` file into the upload zone or click to browse. 2. **Reorder Pages:** Click and hold any page thumbnail in the visual grid, then drag it to your desired position. 3. **Advanced Editing:** Use `Ctrl-Click` or `Shift-Click` to select multiple pages. Once selected, use the sidebar to Duplicate, Rotate, Swap, or bulk-move the pages. 4. **Insert Blank Pages:** Click 'Insert Blank Page at End' from the Global Operations menu to add placeholders. 5. **Undo / Redo:** Made a mistake? Use the Undo and Redo buttons at the top of the sidebar to traverse your edit history safely. 6. **Download:** Hit 'Save Changes' to instantly build your document in the new order and download the finalized PDF. #### Best Practices - Use multi-select (`Shift-Click`) to grab an entire chapter or block of pages and drag them together to a new location in one smooth motion. - Take advantage of the Undo button to experiment with different layouts without permanently breaking your document order. #### FAQs **Q: Are my documents uploaded to a server?** A: No. Everything runs strictly locally via JavaScript in your browser. **Q: Can I duplicate a single page multiple times?** A: Yes! Select the page and click 'Duplicate' as many times as you need. The clones will appear immediately. **Q: Is there a limit to how many pages I can reorder?** A: ToolMono handles large PDFs excellently thanks to lazy-loading. You can easily reorder documents with hundreds of pages without lag. #### Security & Privacy 100% Secure & Private. All PDF processing occurs entirely within your browser's local memory. Your sensitive documents are never uploaded to any remote servers, keeping you compliant with strict data privacy policies. --- ### Delete PDF Pages **URL**: https://toolmono.com/tools/delete-pdf-pages > Free online PDF Page Deletion tool. Upload a PDF and permanently delete specific pages securely in your browser. #### Overview The **Delete PDF Pages** tool allows you to easily remove unwanted pages from a PDF document. Whether you need to delete a blank page at the end of a scan or remove sensitive information before sharing, this tool provides a fast and visual way to select and erase pages. All processing is strictly local to your browser for ultimate privacy. #### How to Use 1. **Upload PDF:** Drag and drop your `.pdf` file into the upload zone or click to browse. 2. **Select Pages to Delete:** Click the pages you want to remove in the visual grid, or use the 'Pages to Delete' input box to type a range (e.g., `1-3, 7`). 3. **Smart Selection:** Use the sidebar shortcuts to quickly select all Odd pages, Even pages, or seamlessly scan and detect completely Blank pages. 4. **Delete:** Hit 'Delete Pages' to instantly generate your new document without the selected pages and download the finalized PDF. #### Best Practices - Use the native OS shift-click shortcut on the visual grid to quickly select large continuous blocks of pages to delete. - Always review the 'Deletion Summary' before exporting to ensure you aren't accidentally deleting more pages than intended. #### FAQs **Q: Are my documents uploaded to a server?** A: No. Everything runs strictly locally via JavaScript in your browser. You can even disconnect your internet after loading the page and the tool will still work! **Q: Can the tool automatically find and delete blank pages?** A: Yes! Click the 'Select Blank Pages' button in the sidebar. The tool will scan the pixel density of every page and automatically select the completely blank ones. **Q: Can I delete every page in the PDF?** A: No. The PDF specification requires at least one page to remain in a document. The tool will prevent you from deleting all pages. #### Security & Privacy 100% Secure & Private. All PDF deletion occurs entirely within your browser's local memory. Your sensitive documents are never uploaded to any remote servers, keeping you compliant with strict data privacy policies. --- ### Watermark PDF **URL**: https://toolmono.com/tools/watermark-pdf > Free online PDF Watermark tool. Upload a PDF and easily stamp custom text or image watermarks on all pages securely in your browser. #### Overview The **Watermark PDF** tool allows you to stamp your documents with custom text or image watermarks. Whether you need to add a 'CONFIDENTIAL' stamp or overlay your company logo, this tool provides a visual way to protect your PDFs. All processing is strictly local to your browser for ultimate privacy. #### How to Use 1. **Upload PDF:** Drag and drop your `.pdf` file into the upload zone or click to browse. 2. **Configure Watermark:** Choose between a text or image watermark and adjust the opacity, rotation, and position. 3. **Apply:** Click 'Apply Watermark' to instantly generate your new stamped document. #### Best Practices - Use subtle opacity (10-30%) so the watermark doesn't obscure the underlying text. - Place watermarks diagonally across the center for maximum protection against unauthorized use. #### FAQs **Q: Are my documents uploaded to a server?** A: No. Everything runs strictly locally via JavaScript in your browser. #### Security & Privacy 100% Secure & Private. All PDF processing occurs entirely within your browser's local memory. Your sensitive documents are never uploaded to any remote servers. --- ### Add Page Numbers **URL**: https://toolmono.com/tools/add-page-numbers-pdf > Free online PDF Page Numbering tool. Upload a PDF and easily add page numbers to all pages securely in your browser. #### Overview The **Add Page Numbers to PDF** tool allows you to automatically paginate your documents with professional formatting. Whether you need to add standard page numbers to a contract, apply Bates numbering for legal discovery, or use Roman numerals for academic prefaces, this tool provides a powerful visual engine to customize every detail. All processing is strictly local to your browser for ultimate privacy. #### How to Use 1. **Upload PDF:** Drag and drop your `.pdf` file into the upload zone or click to browse. 2. **Configure Numbers:** Choose a format (e.g., 'Page 1 of 10') and a Number Style (Arabic, Roman, or Alphabetic). Adjust the font family, size, color, opacity, and anchor position. 3. **Select Pages:** Switch to the 'Pages' tab to filter exactly which pages get numbered. Use shortcuts to instantly 'Skip First Page' or 'Number Odd Pages Only'. 4. **Preview & Apply:** Review the live visual preview on your document thumbnails. Once satisfied, click 'Add Page Numbers' to generate your paginated document instantly. #### Best Practices - Use a legible font family (like Helvetica or Times New Roman) with a standard size (10-12pt). - Adjust the Edge Margin slider to ensure page numbers do not overlap with existing footer text. - Use the Opacity slider (e.g., 60%) to make page numbers blend cleanly into the document without overpowering the content. #### FAQs **Q: Are my documents uploaded to a server?** A: No. Everything runs strictly locally via JavaScript in your browser. **Q: Can I use Roman Numerals?** A: Yes! The tool supports Uppercase Roman (I, II, III), Lowercase Roman (i, ii, iii), and even Alphabetic numbering. **Q: Can I skip the title page?** A: Yes, just switch to the 'Pages' tab and click the 'Skip First Page' shortcut. #### Security & Privacy 100% Secure & Private. All PDF processing occurs entirely within your browser's local memory. Your sensitive documents are never uploaded to any remote servers. --- ### Add Text to PDF **URL**: https://toolmono.com/tools/add-text-to-pdf > Free online PDF editor. Upload a PDF and easily type text, fill forms, or add notes anywhere on the page securely in your browser. #### Overview The **Add Text to PDF** tool lets you quickly type onto any PDF document. Whether you need to fill out a non-interactive form, annotate a report, or add quick notes, this tool provides an intuitive drag-and-drop text editor right in your browser. All processing is strictly local for ultimate privacy. #### How to Use 1. **Upload PDF:** Drag and drop your `.pdf` file into the upload zone or click to browse. 2. **Add Text:** Click anywhere on the PDF preview to add a text box. 3. **Customize:** Change the font size, color, and style. 4. **Apply:** Click 'Export PDF' to instantly save your annotated document. #### Best Practices - Zoom in on the document to ensure your text aligns perfectly with existing lines or boxes. #### FAQs **Q: Are my documents uploaded to a server?** A: No. Everything runs strictly locally via JavaScript in your browser. #### Security & Privacy 100% Secure & Private. All PDF processing occurs entirely within your browser's local memory. Your sensitive documents are never uploaded to any remote servers. --- ### Add Images to PDF **URL**: https://toolmono.com/tools/add-images-to-pdf > Free online PDF editor. Upload a PDF and easily insert, resize, and position images anywhere on the page securely in your browser. #### Overview The **Add Images to PDF** tool lets you quickly insert pictures onto any PDF document. Whether you need to paste a signature, append a photo, or overlay a graphic, this tool provides an intuitive drag-and-drop image editor right in your browser. All processing is strictly local for ultimate privacy. #### How to Use 1. **Upload PDF:** Drag and drop your `.pdf` file into the upload zone or click to browse. 2. **Add Image:** Click to upload an image or drag one onto the PDF preview. 3. **Customize:** Resize, rotate, and drag the image into position. 4. **Apply:** Click 'Export PDF' to instantly save your updated document. #### Best Practices - Use transparent PNGs for signatures or logos so they blend naturally into the document. #### FAQs **Q: Are my documents uploaded to a server?** A: No. Everything runs strictly locally via JavaScript in your browser. #### Security & Privacy 100% Secure & Private. All PDF processing occurs entirely within your browser's local memory. Your sensitive documents and images are never uploaded to any remote servers. --- ### Password Protect PDF **URL**: https://toolmono.com/tools/password-protect-pdf > Free online PDF tool. Securely add a password to encrypt and protect your PDF documents directly in your browser. #### Overview The **Password Protect PDF** tool lets you encrypt your PDF documents with a strong password. Prevent unauthorized access, copying, or printing. All encryption happens locally in your browser to guarantee the highest level of security and privacy. #### How to Use 1. **Upload PDF:** Drag and drop your `.pdf` file into the upload zone or click to browse. 2. **Set Password:** Enter a strong password to lock the document. 3. **Apply:** Click 'Protect PDF' to generate the encrypted file. #### Best Practices - Use a strong, unique password that you haven't used elsewhere. - Communicate the password to the recipient through a separate, secure channel. #### FAQs **Q: Can I recover a forgotten password?** A: No. Because the encryption happens locally, we do not store your password. If you lose it, the document cannot be recovered. **Q: Are my documents uploaded to a server?** A: No. Everything runs strictly locally via JavaScript in your browser. #### Security & Privacy 100% Secure & Private. The PDF is encrypted entirely within your browser's local memory using military-grade encryption algorithms. Neither the document nor the password is ever sent to any remote servers. --- ### Unlock PDF **URL**: https://toolmono.com/tools/unlock-pdf > Remove passwords from PDF files instantly in your browser. No uploads, no servers. You must know the current password — this tool does not crack or bypass encryption. #### Overview The **Unlock PDF** tool permanently removes password protection and encryption restrictions from your PDF documents. Once unlocked, you can freely open, print, copy, and edit the file without entering a password every time. This tool works entirely in your browser. **Your document is never uploaded to any server.** The decryption happens in memory and the result is downloaded directly to your device. > **Important:** You must know the correct password. This tool does not crack, guess, or brute-force passwords. It is designed for users who legitimately hold the password and wish to remove the restriction. #### How to Use 1. **Upload your PDF:** Drag and drop the protected PDF into the upload zone, or click to browse your files. 2. **Review the Security Panel:** The tool automatically detects the encryption algorithm, revision, and which permissions are currently restricted. 3. **Enter the Password:** Type or paste the document password. Use the eye icon to show/hide it, or the clipboard icon to paste it instantly. 4. **Click Unlock PDF:** The tool decrypts the document entirely in your browser memory. 5. **Download the Result:** Rename the output file if you wish, then click 'Download Unlocked PDF' to save a permanent, encryption-free copy. #### Best Practices - Always keep the original protected file as a backup before downloading the unlocked version. - Store the unlocked copy securely — once decrypted, anyone with access to the file can open it. - If you need to re-protect the document, use the **[Password Protect PDF](/tools/password-protect-pdf)** tool immediately after unlocking. - Use the 'Remember for this session' option if you need to process several related files with the same password — it only persists in browser memory and clears when you close the tab. #### FAQs **Q: Can this tool unlock a PDF if I do not know the password?** A: No. This tool is not a password cracker or brute-force tool. You must already know the correct password. If you have forgotten it, there is no way to recover it using this tool. **Q: What is the difference between a User Password and an Owner Password?** A: A User Password (Open Password) is required to view the document. An Owner Password restricts specific operations like printing or copying but does not prevent viewing. This tool supports removing both types when the correct password is provided. **Q: Are my documents uploaded to a server?** A: No. Everything runs entirely locally in your browser. No file ever leaves your device. **Q: The tool says Unsupported Encryption — what does that mean?** A: PDFs encrypted with AES-256 (PDF 2.0 standard) may not be fully supported by the underlying library. In this case, try using Adobe Acrobat or a dedicated desktop tool to remove the password. **Q: Will the unlocked PDF look exactly the same as the original?** A: Yes. The decryption process only removes the Encrypt dictionary. All content, formatting, fonts, and images remain exactly as they were. **Q: Can I use this to bypass DRM or copyright protection?** A: No. This tool is intended only for users who legitimately hold the password for their own documents. Bypassing DRM or removing passwords you do not own is illegal in most jurisdictions. #### Security & Privacy 100% Private and Secure. Your PDF is decrypted entirely within your browser local memory. No file data, password, or metadata is ever transmitted to any external server, cloud service, or third party. Passwords are held in React component state only and are never written to localStorage, sessionStorage, cookies, or any persistent storage. --- ## Pages - [Home](https://toolmono.com/): Browse all 70+ developer tools by category - [About](https://toolmono.com/about): Learn about ToolMono's mission, architecture, and privacy commitment - [API Documentation](https://toolmono.com/api-docs): REST API reference for programmatic tool access - [Contact](https://toolmono.com/contact): Get in touch with the ToolMono team - [Privacy Policy](https://toolmono.com/privacy-policy): Data handling and privacy practices - [Terms of Service](https://toolmono.com/terms-of-service): Usage terms and conditions - [Changelog](https://toolmono.com/changelog): Release notes and feature updates