About Random Number Generator

Need a random number between two values? This generator produces cryptographically-strong random integers within any range you set, with options to generate one number or a batch at once. Use it for raffle drawings, contest winner selection, assigning random IDs for testing, dice-roll alternatives, or generating sample data for development and QA work.

How to Use Random Number Generator

1. 1Set the minimum and maximum values for your desired range
2. 2Click Generate to produce a single random number
3. 3Use the batch mode to generate multiple numbers at once
4. 4Copy results individually or as a formatted list

When to Use Random Number Generator

• ▸Drawing prizes for giveaways, raffles, and contests
• ▸Generating test data for software development and QA
• ▸Randomizing assignment order in classrooms or workshops
• ▸Any decision-making that benefits from true randomness

Frequently Asked Questions

How random is the generator?

It uses the browser's cryptographically-secure random number generator (`crypto.getRandomValues`), which is suitable for most non-gambling applications and is significantly better than `Math.random()`.

Can I prevent duplicate numbers?

The generator produces independent random numbers each time, so duplicates are possible. For guaranteed unique numbers in a batch, consider adjusting your range or post-processing the results.