Last updated 24 August 2026
With or without repeats
The default mode can produce the same number more than once, just like rolling a die several times can land on the same face twice. Turning on "no repeats" instead draws from the range without putting numbers back — which only works if the range is large enough to supply as many unique numbers as requested.
Common questions
What does "unique" actually do?
It guarantees no number repeats in the result, the way drawing raffle tickets without putting them back works. It's only possible when the range has at least as many numbers as you're asking for — asking for 10 unique numbers from a range of 5 isn't possible, and the tool says so rather than guessing.
Is this good enough for something like a raffle or giveaway?
For everyday fairness, yes — it uses the browser's standard random number source, which has no memory or bias toward any number. For anything with real money or legal stakes, check what randomness standard is actually required.
Can the range include negative numbers?
Yes — minimum and maximum can be any whole numbers, positive, negative, or a mix, as long as the minimum isn't larger than the maximum.