What Is Random Number Generator?

A free online random number generator. Generate one or many random numbers within a custom range using the Web Crypto API for secure randomness. Toggle unique-only mode, sort results, and view statistics including min, max, average, and sum.

Why Use Random Number Generator?

  • Uses crypto.getRandomValues() for secure randomness
  • Generate 1-100 numbers at once
  • Unique-only mode (no duplicates)
  • Statistics: min, max, average, sum

How to Use Random Number Generator — Step by Step

1

Set the minimum and maximum values for your range.

2

Choose how many numbers to generate (1-100).

3

Toggle unique-only and sort options as needed.

4

Click Generate and copy the results.

Who Is Random Number Generator Best For?

  • lottery numbers
  • raffles
  • statistical sampling
  • game design

Random Number Generator — Frequently Asked Questions

Are these random numbers truly random?

The generator uses the browser's crypto.getRandomValues() API, which provides cryptographically secure pseudo-random numbers. This is suitable for most non-cryptographic purposes.

Can I generate unique random numbers only?

Yes, toggle on the "Allow duplicates" option off to generate unique numbers. The generator uses a Fisher-Yates partial shuffle to ensure uniqueness within the specified range.

Ready to Use Random Number Generator?

Free online tool — works in your browser, no sign-up required. Start using it right now.

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