Random Number Generator
Random Number Generator: free, accurate and easy to use. Works in your browser with no sign-up.
How to use
Generate random whole numbers within a range you choose, with options for unique values and sorted results. Numbers are created with your browser’s secure random generator, which makes the tool suitable for raffles, games, sampling and picking winners.
- Enter your numbers.
- Results update instantly.
- Copy the result you need.
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Frequently asked questions
Are the numbers truly random?
They come from the browser’s cryptographically secure generator (crypto.getRandomValues), which is far stronger than simple pseudo-random functions.
Can I get numbers without repeats?
Yes. Turn on unique numbers and each value appears at most once. The range must be at least as large as the amount you request.
Is it free?
Yes. All tools are free, with no sign-up and no limits.
Is my data stored or sent?
No. Everything is calculated in your browser and nothing you enter is sent anywhere.
Are the results exact?
Fractions, bases and GCD/LCM use exact integer arithmetic. Statistics use standard formulas on decimal numbers.