How does the random number generator work?

Numbers are generated using the browser's cryptographically secure random number generator (Web Crypto API) rather than a simple pseudo-random function, so the distribution across the range is even.

Can I generate several numbers at once without repeats?

Yes, turn off "No repeats" and you'll get unique numbers - useful for e.g. lottery or raffle simulations.

// tools / lottery

Random number generator

Set a range and generate one or more random numbers.

~/random-number

Result

Form

// custom solution

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Random number generator

Need something similar - or completely different?Let's talk custom.

Need something similar - or completely different?
Let's talk custom.