How do I roll a d20 online?
Set the sides to 20, the number of dice to 1, and press Roll. The result shows the roll and its total, and pressing Roll again draws a fresh, independent number. For advantage or disadvantage, roll 2 dice at once and read the higher or lower of the two listed results.
Can I roll multiple dice at once?
Yes, up to 20 in one click, all with the same number of sides. The output lists every die individually and then sums them, so 3d6 or 8d6 is a single roll rather than a series.
Can I roll a d100?
Yes. Set the sides to 100 and each roll returns a number from 1 to 100 directly, with no need to pair percentile dice. Any side count from 2 to 100 works the same way.
Does it work for D&D and other tabletop games?
Yes, for the rolls themselves: every die in the standard set is covered, and individual results are shown so rules like drop-the-lowest still work. Modifiers, advantage, and exploding dice are applied by you, since the roller deliberately stays system-neutral.
Is the dice roller free?
Yes, with no signup and no roll limit. It runs entirely in your browser, so it also works offline once the page has loaded.
Is a digital die really as fair as a physical one?
It is fairer. A manufactured die is not a perfect cube, and on a standard pipped die the material drilled out for the pips makes the six face slightly lighter than the one, which biases the result toward six by a small but measurable amount. Casino dice are made with flush, filled pips precisely to eliminate this. A die rolled here draws from a cryptographically secure generator with rejection sampling, so every face has exactly equal probability, which no physical object can quite manage.
Why is rolling three dice different from rolling one big one?
Because sums of dice form a bell curve while a single die is flat. Every face of a d20 has a 5% chance. With 3d6, the total of 10 or 11 comes up about 12.5% of the time each, while the extremes of 3 and 18 occur only once in 216 rolls. That clustering toward the middle is the entire point of rolling multiple dice in a game system: it makes average outcomes common and extreme ones memorable.
I rolled four sixes in a row. Is it broken?
No. Four consecutive sixes on a d6 has a probability of about one in 1,296, which sounds unlikely until you consider how many sequences of four rolls happen across all the people using a dice roller. Random sequences contain runs, and they contain more of them than people expect: a truly random sequence looks clumpy, and a sequence that looks evenly spread is usually the one that has been tampered with. Each roll here is drawn independently, so no previous result has any influence on the next.
Can I roll 3d6 plus a modifier?
Not directly. The roller gives you the individual dice and their total, and any modifier has to be added yourself. It also does not support advantage, disadvantage, exploding dice, or drop-the-lowest rules, all of which are game-system-specific. What it does give you is every individual result rather than only the sum, so you can apply whatever rule your system needs.
Does the roll happen on a server?
No. Every roll is generated in your browser and nothing is transmitted. If you need a roll that another person can verify was not re-rolled, no client-side tool can give you that, and you would need a witnessed physical roll or a commitment scheme.