Random Number Generator

Free random number generator. Generate random numbers within a range with optional unique-only mode.

How the Random Number Generator works

The generator picks numbers from a uniform distribution across your specified range, meaning every integer has an equal chance of being selected. In unique-only mode it tracks previously drawn numbers and re-rolls until an unseen value is found, ensuring no repeats.

Formula

n = floor(rand() × (max − min + 1)) + min

How to use the Random Number Generator

  1. 1The random number generator is designed to be simple and fast.
  2. 2Set the minimum and maximum.
  3. 3Choose how many numbers.
  4. 4Toggle unique-only if needed.
  5. 5Your result is shown immediately.

Examples

  • 1-100, 1 number = 42
  • 1-49, 6 unique = lottery-style draw

Benefits

  • Completely free with no signup required.
  • Runs entirely in your browser for instant results and privacy.
  • Works on mobile, tablet and desktop.
  • Results can be copied with one click.

Frequently Asked Questions

Is the random number generator free to use?

Yes. The random number generator is 100% free, with no signup, no watermark and no hidden limits.

Does the random number generator store my data?

No. All calculations and processing happen locally in your browser. Nothing is uploaded to a server.

Does the random number generator work on mobile?

Yes. The random number generator is fully responsive and works on phones, tablets and desktop computers.

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