Coinroll

Random number generator

Random number generator

Enter the lowest and highest number (both included), from −1,000,000,000 to 1,000,000,000. Choose how many numbers to draw (up to 100) and whether repeats are allowed. Press Draw. Copy the result with one click.

How the draw works

Every result comes from crypto.getRandomValues, your browser's cryptographic random generator, with rejection sampling so that every slice, face and number has exactly the chance it shows. The winner is decided before the animation starts; the spin only reveals it.

Questions and answers

Are both limits included?

Yes. A range of 1 to 10 can return 1 and 10, each with the same chance as any number in between.

How do I draw lottery-style numbers?

Set the range (for example 1 to 49), the count (6), untick “Allow repeats” and tick “Sort”.