Roll two 20-sided dice at once, free and online — useful for advantage/disadvantage-style tabletop rules.
Rolls one or more dice of any common type — the standard d6 for board games, or d4/d8/d10/d12/d20 for tabletop role-playing games and other systems that use them. Each die shows its own result, plus the total across all dice rolled together, which matters for games where you roll multiple dice and sum them (like 2d6 for many board games, or the varied dice pools used in RPG systems).
Each roll is an independent, unbiased random choice within the die's range — a d20 has an equal 1-in-20 chance of landing on any face, the same as a physical die would in fair conditions.
Useful for board games missing a die, tabletop RPG sessions run remotely, or teaching basic probability with dice that aren't limited to the standard six sides.
Yes — each roll is an independent, uniformly random choice across the die’s full range, the same fairness a physical die has (assuming it’s not weighted or damaged).
Not in a single roll currently — each roll uses one die type at a time. Roll each type separately and add the totals yourself for a mixed dice pool.
10 dice of the selected type in a single roll, which covers the large majority of board game and tabletop RPG situations.
It adds a flat bonus or penalty to the total after all dice are rolled — the standard tabletop convention behind notation like "d20+2" or "3d6−1" — not applied separately to each individual die.