Random number generator
Press Generate for fresh random numbers in your range.
Random numbers
Random numbers: 76
How it works
Each press of Generate takes a fresh seed from your browser’s secure random source. The seed drives a fast pseudo-random generator that picks the numbers.
Every number in the range is equally likely: the generator rejects values that would make some numbers slightly more common. With No repeats on, numbers are drawn without replacement, like balls from a bag.
The same seed always gives the same numbers, so a draw can be checked or repeated.
Formula
P(each number) = 1 ÷ (max − min + 1) no repeats: draw without replacement (Fisher–Yates)
Worked example
For a 6-from-49 lottery-style pick, set From 1, To 49, How many 6 and turn on No repeats. Each of the 49 numbers has the same 6/49 chance of appearing.
Questions people ask
Are these numbers truly random?
They are pseudo-random, seeded from your browser’s cryptographic random source. That is ample for games, draws and sampling, but don’t use it to create passwords or keys.
Can I get the same numbers again?
Yes. Copy the seed; typing the same seed with the same settings repeats the draw.
Is anything sent to a server?
No. The numbers are generated in your browser and are not recorded.