Random Number Generator
Generate random numbers within custom ranges with configurable distribution types and statistical properties. Perfect for gaming, simulations, and statistical sampling with cryptographically secure random generation.
Number of random numbers to generate (1-1000)
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What is Random Number Generator?
The Random Number Generator produces random integers within a range you specify. You set the minimum and maximum values, how many numbers to generate, and whether duplicates are allowed. The tool uses Math.random for generation and displays results instantly. All processing happens in the browser.
How does Random Number Generator work?
This tool generates random integers using Math.random scaled to your range. When duplicates are disallowed, it ensures each generated number is unique. The output shows all generated numbers in a list.
Key Features
- Configurable min and max range
- Set how many numbers to generate
- Allow or disallow duplicates
- Sort results option
- Copy results to clipboard
- Download as text file
- Runs in the browser with no uploads
- Real-time generation
Common Use Cases
Picking lottery numbers
Generate random numbers within a lottery's range for a quick pick.
Making random decisions
Generate a number to randomly select between options.
Creating test data
Generate random integers for populating arrays, databases, or test cases.
Running classroom activities
Randomly select student numbers or assign groups.
How to Use This Tool
Set the range
Enter minimum and maximum values.
Set count and options
Choose how many numbers and whether to allow duplicates.
Generate
Click Generate to produce the random numbers.
Copy the results
Copy the numbers or download them.
Pro Tips
- 1
For lottery picks, set the range to match the lottery rules and disallow duplicates.
- 2
The tool uses Math.random, which is suitable for games and casual use but not for cryptography.
- 3
Set count to 1 for a single random number.
- 4
Sort the results to see them in order.
Frequently Asked Questions
What range of numbers can I generate?
Any integer range. Set the minimum and maximum values and the tool generates numbers within that range inclusive.
Can I generate unique numbers only?
Yes. Toggle 'disallow duplicates' to ensure each generated number is unique.
Is my data sent to a server?
No. All generation happens in your browser. Nothing is transmitted.
How many numbers can I generate at once?
There is no hard limit. The practical limit depends on whether duplicates are allowed and the size of the range.
Is this cryptographically secure?
No. The tool uses Math.random. For security applications, use a dedicated cryptographic random generator.
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