Random Number Generator
Free online Random Number Generator tool.
Mathstable
Input
Enter values for Random Generator
Min
Max
Count
Allow Duplicates
Result
Run calculation to see results
About Random Number Generator
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.
Real-World Examples
Rolling a D20 Dice
Simulate a 20-sided dice roll for a tabletop game.
Input
Min: 1, Max: 20, Count: 1
Output
17
Best Practices
- If you need cryptographically secure randomness for passwords or tokens, use the Password Generator or UUID Generator instead.
Pro Tips
To pick a random winner from a list of 500 rows, set Min to 1, Max to 500, and generate 1 unique number.
Frequently Asked Questions
Can I generate negative numbers?
Yes, you can easily set the Minimum value to a negative number (e.g., Min: -100, Max: 100).
Is my data secure?
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.