Dice Roller – Frequently Asked Questions

The roller supports D4, D6, D8, D10, D12, D20, and D100. These cover all the standard tabletop RPG dice set (the Platonic solids plus D10 and D100). D6 is the standard six-sided die used in most board games. D20 is the primary action-resolution die in Dungeons & Dragons. D100 (also called percentile dice) uses two D10s combined to generate 1–100.

Yes — set the number of dice and all are rolled simultaneously. The total is calculated and displayed alongside individual die results. Rolling 4D6 and dropping the lowest is the standard D&D character creation method — roll 4 dice, discard the smallest value, sum the remaining three. You can do this by rolling 4 at once and manually excluding the lowest shown result.

Each die uses JavaScript's Math.random() to generate results. This is pseudorandom — statistically fair for gaming purposes where every face has equal probability, but not cryptographically secure. Physical dice have slight bias from manufacturing imperfections. Digital dice using Math.random() are actually more uniformly distributed than most physical dice.

Yes — add a positive or negative modifier that's applied after the roll. In D&D, a character with a +3 Strength modifier rolling for an attack adds 3 to whatever the D20 shows. Setting the modifier to +3 in the roller means you get the adjusted total immediately rather than doing the addition manually.

Yes. Standard board games use D6 exclusively — Monopoly, Catan, Backgammon. The roller works for any game needing dice. Some educational board games use D4 or D8. If you're playing a game where someone forgot to bring dice, or you're playing online over video call, this replaces physical dice entirely. It runs in any mobile browser so no one needs an app.

Yes — this is a practical use. Rolling a D6 100 times and recording the distribution shows students experimentally that each face appears roughly 1/6 of the time. The more rolls you do, the closer you get to equal distribution — this demonstrates the law of large numbers. Rolling multiple dice and summing shows how probability distributions shift toward the middle value (7 for 2D6, for example).

Yes — each roll is logged in the history tab showing the dice type, individual results, modifier, and total. You can review recent rolls without them disappearing after each new roll. The history clears when you reload the page. If you need a permanent record for a campaign session, copy the history before closing.

Yes — this is one of the most popular uses. For online D&D or other tabletop RPGs played over video call, each player opens the roller in their browser and rolls when needed. Share your screen to show the result to the group for transparency. Some groups prefer a shared virtual tabletop (like Roll20) that includes integrated dice, but for groups using voice chat only, this roller is a quick zero-setup alternative.