Random Number Generator

What is the Random Number Generator?

The Random Number Generator is a free online tool that produces random numbers with no predictable pattern. It uses your browser's cryptographically-strong randomness, so every result is fair and independent, ideal for draws, giveaways, games, sampling and testing.

The Random Number Generator instantly creates random numbers at random, right in your browser. Perfect for draws, giveaways, games, sampling and testing, no sign-up, no waiting, and nothing is ever stored. Set your options, press Generate, and copy your result in a click.

Ways to use the Random Number Generator

The Random Number Generator is built for speed and fairness. Whether you need a single pick or a batch of random numbers, it delivers an unbiased result the moment you press Generate, so you can get on with the task at hand.

Games and prize draws

Pick raffle winners, decide who goes first, or run a quick guessing game. Because every random number is equally likely, nobody can argue the outcome was rigged.

Testing and development

Developers and QA teams use the Random Number Generator to seed test data, stress-test input fields, and generate sample values without hand-typing them, saving hours of tedious work.

Teaching and classrooms

Teachers use it to pick students at random, create maths problems on the fly, or demonstrate probability and distribution in a way students can see and trust.

Everyday decisions

Can't choose between options? Assign each a number and let the Random Number Generator decide, taking the pressure off and keeping things impartial.

Tips

For draws where the same result should never repeat, switch on the No repeats option. For larger samples, increase the count and copy the whole set at once.