Dice Roller
Roll up to a hundred dice at once, in any of the standard sizes from d4 to d100. Every die is shown individually alongside the total, the average and the possible range, which is what you need for a tabletop game where individual results matter as much as the sum. Each roll is drawn from the browser cryptographic random number generator, so every face is exactly as likely as every other. Everything is generated in your browser; nothing is uploaded and no result is recorded anywhere.
How it works
Each roll is drawn from the browser’s cryptographic random number generator using rejection sampling, so every outcome is exactly equally likely. A modulo would make the low faces very slightly more common — invisible in a handful of rolls, but it is a real skew and there is no reason to accept it.
A run of the same result is not evidence of anything: with fair rolls, streaks are expected and common. The tallies below are there to show the distribution over many trials rather than to prove fairness from a few.
Nothing is uploaded, and no result is recorded anywhere outside this page.
Frequently asked questions
Are the dice fair?
Yes. Each face is exactly as likely as every other, drawn from the browser cryptographic random number generator using rejection sampling. A modulo would make the low faces very slightly more common — invisible in a session, but there is no reason to accept it.
Why show every die rather than just the total?
Because in most games the individual results matter: a natural twenty, a die that needs rerolling, or a rule that counts how many dice beat a threshold. The total alone throws that away.
Can I roll several dice of different sizes at once?
Not in a single roll — pick a size and a count. Roll each size in turn and the recent list keeps the results visible while you do.
What does the average tell me?
It is the mean of the dice you just rolled, shown next to the possible range so you can see where this roll sits. For a d20 the long-run average is 10.5; a single roll landing far from that is completely ordinary.
Is the result recorded anywhere?
No. Rolls happen in your browser, nothing is sent anywhere, and the recent list is discarded when you close the tab.
Related tools
Coin Flip
Flip a fair coin once or thousands of times, with a running tally of heads and tails.
Random Name Picker
Paste a list and draw winners at random, or shuffle the whole list into a fair random order.
Random Integer Range Generator
Draw whole numbers from a range you set, with or without repeats, from a cryptographic random source.