NEW

Random Number Generator

Fair random numbers with history.

About this calculator

Picking a raffle winner, assigning teams or choosing a number for a game all need fairness you can trust. This generator uses your browser’s cryptographic random source — not a predictable pattern — to pick uniformly between any minimum and maximum.

A no-repeat mode avoids duplicates until the whole range is used, and a history list keeps the last 20 results newest-first, so draws and decisions stay transparent.

How to use

Enter the minimum and maximum of your range.
Tick no-repeat mode if you want no duplicates.
Click Generate for a random number.
Review the history list for previous results.

Frequently asked questions

Is it truly random?

It uses the browser’s cryptographic random generator (Web Crypto API), which is unpredictable and uniformly distributed — suitable for draws and games.

How does no-repeat mode work?

It keeps drawing until it finds a number not already in the history, so every value in the range appears before any repeats.

How many results are kept?

The last 20 results are shown, newest first.