Roll standard and custom dice (d4, d6, d8, d10, d12, d20, d100) with 3D animation and history.
This tool rolls dice for tabletop games without a single physical die: pick a die type - d4, d6, d8, d10, d12, d20, or d100 - choose how many, and the browser tumbles them in 3D before showing the faces and the total. Every roll is appended to an on-screen history, so a long combat round stays checkable, and everything happens in the tab: nothing is uploaded. The surprise most users hit is that the 3D animation is decoration. The outcome is settled the instant you roll; the tumbling is theater, and a die that keeps landing on the same number is ordinary random variation, not a broken or biased roller.
A concrete input and expected output from the current implementation.
Input
2d6
Expected output
The tool rolls two six-sided dice and shows each face with the total, logged in the history. One possible result: 4 and 5, total 9. Any total from 2 to 12 can occur, and 7 is the most common.
Each d6 lands on 1 to 6 with equal probability, so two of them sum from 2 to 12; 4 plus 5 equals 9, and 7 is the likeliest total because six different pairs add up to it (1+6, 2+5, 3+4, 4+3, 5+2, 6+1).
Each die's result comes from the browser's random number generator, and a fair n-sided die lands on any face with probability 1/n - a d20 treats 1 and 20 exactly alike. Rolls are independent: no roll remembers or influences the next, so there is no 'due' number after a streak. The 3D animation cannot change or be steered to an outcome; what the dice show is the result.
Choose a die type and a count, and the tool rolls each die on its own, showing individual faces beside the sum. The distinction matters: 2d6 totals run from 2 to 12 but cluster around 7, while a single d12 spreads 1-12 evenly - the same maximum with very different odds. The standard seven types and the custom dice all follow this one rule: independent uniform roll per die, results added together.
As fair as the browser's randomness allows: every face is equally likely in expectation, and for casual play that is plenty. It is not a certified or audited random source, though, so do not stake money, bets, or anything legally consequential on it. If a result needs to stand up to scrutiny, use physical dice or a generator whose method is documented and verifiable.
Neither improves luck - both change the shape of the odds. A d20 gives every result from 1 to 20 the same 1-in-20 chance, while 2d6 favors the middle and a d12 spreads evenly. If the game rules specify a die, substituting another type shifts the probabilities the rules were balanced around, so roll what the rule says.
The example and behavioral notes were checked against the browser implementation. Standards and primary references below define the relevant format, formula, or platform behavior.
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