Don's Tools · Generators · Random Number & Dice

Random number & dice

Generate random numbers, roll dice, flip coins and draw names, right in your browser.

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Truly random and offline: results use your browser's cryptographically secure random source, with nothing uploaded.
Random Number and Dice is a free generator that produces random numbers, dice rolls, coin flips and random picks entirely in your browser using a cryptographically secure random source, with nothing uploaded. It supports custom ranges, unique results, decimals and sorting, dice from d4 to d100, and a fair picker for raffles and draws from your own list.

Frequently asked questions

Is it truly random and private?

It uses your browser's cryptographically secure random generator, which is high quality, and everything runs locally with nothing uploaded.

What can it do?

Generate random numbers in a range, roll any number of dice (d4 to d100), flip coins, and pick random items from your own list.

Can I get unique numbers with no repeats?

Yes. Turn on Unique for whole numbers, and the count is automatically capped at the size of the range so every result is different.

Can I make a fair random draw or raffle?

Yes. Use Pick mode, paste your names or entries one per line, choose how many to draw and keep No repeats on for a fair selection.

Is there a limit?

You can generate up to 100,000 numbers at once. Very large amounts simply take a moment to display.