Roll 1 to 6 virtual dice with 4, 6, 8, 10, 12, or 20 sides. Free, instant, and truly random.
Each roll uses the Web Crypto API (crypto.getRandomValues) to generate a cryptographically secure random value for every die, mapped evenly across the number of faces you chose. Nothing is precomputed or repeated — every roll happens fresh, locally in your browser.
| Die | Faces | Common use |
|---|---|---|
| d4 | 4 | Damage rolls in tabletop RPGs |
| d6 | 6 | Classic board games (Monopoly, Yahtzee) |
| d8 | 8 | Tabletop RPGs |
| d10 | 10 | Percentile rolls, RPGs |
| d12 | 12 | Tabletop RPGs |
| d20 | 20 | Dungeons & Dragons core mechanic |
Every face of a fair die has an equal chance of landing: 1-in-6 for a single d6, 1-in-20 for a single d20, and so on. Rolling more than one die changes the picture for the total, though — with two d6, there's only one way to roll a 2 (1+1) but six ways to roll a 7 (1+6, 2+5, 3+4, 4+3, 5+2, 6+1), which is why 7 is the most common sum in games like Monopoly and craps, even though every individual die stays perfectly fair.
Is this dice roller truly random? Yes — it uses the Web Crypto API (crypto.getRandomValues), a cryptographically secure random number source built into your browser, rather than a predictable pseudo-random generator.
What dice sizes are supported? d4, d6, d8, d10, d12, and d20 — the standard set used in tabletop games like Dungeons & Dragons — with 1 to 6 dice rolled at once.
Can I use this for board games instead of physical dice? Yes — it works well as a substitute when dice are missing, lost, or you're playing remotely with others.
Does it store or share my rolls? No — every roll happens locally in your browser and nothing is saved or transmitted.
What's the probability of rolling any specific number on a d20? Exactly 1 in 20 (5%) for each face, since a fair d20 gives every outcome an equal chance.
Why do some totals come up more often when rolling two dice? Because more combinations of the two dice add up to certain totals — for two d6, there's only one way to make 2 or 12, but six ways to make 7, so middle totals appear far more often over many rolls.