Online dice roller
Roll dice with tabletop notation (3d6, 2d20+1, d100) or flip a coin. See every die, the total and the history, with an optional seed.
Like 3d6, 2d20+1 or d100.
The same seed always gives the same result.
How it works
How it works
Write the dice in tabletop notation: 3d6 is three six-sided dice, 2d20+1 is two twenty-sided dice plus a modifier of 1, and d100 is one hundred-sided die. The quick buttons set a single die with 4, 6, 8, 10, 12, 20 or 100 faces. When you roll you see every die, the sum, the modifier and the total in large type, along with the lowest and highest possible totals.
In the Coin tab you can flip from 1 to 100 coins at once and see how many came up heads and how many tails.
Chance and seed
Every roll uses the browser’s cryptographic generator, so all results are equally likely. If you type a seed, the series of rolls can be repeated: with the same seed, the first roll, the second and the rest always come out the same. Handy for turn-based games or to check a roll later. Below you see the last 10.