Dice Roller
Roll dice for games and simulations
About the Dice Roller
Lost your dice, or need a fistful of them for a tabletop game? This dice roller covers the standard polyhedral set — D4, D6, D8, D10, D12, and D20 — plus any custom-sided die you define, and rolls them with cryptographically secure randomness so every result is fair.
Tabletop and role-playing gamers use it to roll attack and damage dice, board gamers use it when the physical dice go missing, and teachers use it for classroom games. You can stack multiple dice of different types, roll them all at once, and see each individual result alongside the totals.
How to Use the Dice Roller
- Tap the standard dice (D4 through D20) to add them, or define a custom die by sides and count.
- Adjust the count for any die in your selection.
- Click "roll dice" to roll everything at once.
- Read each die's individual results and per-type sum, plus the grand total; recent rolls are kept in history.
Why Use ToolForge’s Dice Roller
- It uses cryptographically secure randomness (crypto.getRandomValues), so rolls are genuinely fair rather than subtly biased.
- It supports the full standard polyhedral set plus custom-sided dice, and lets you roll many at once.
- It shows every individual roll and the sums, with a history of recent rolls for reference.
- Rolls happen instantly in your browser, with nothing to sign up for.
Frequently Asked Questions
What do D6, D20, and similar notations mean?
The D stands for "die" and the number is how many sides it has — a D6 is a standard six-sided cube, a D20 is the twenty-sided die common in role-playing games. You can add any of these or define a custom number of sides.
Can I roll several dice at the same time?
Yes. Add as many dice as you need, of mixed types, set the count for each, and roll them together. The results show each die's individual values, the sum per die type, and the overall total.
Are the rolls fair?
They are generated with your browser's cryptographically secure random source, giving each face an equal chance — fairer than many simple random functions and free from the slight imbalances a physical die can have.
Can I create a die with an unusual number of sides?
Yes. Beyond the standard set, the custom-dice option lets you define any number of sides — a D100 for percentile rolls, or a D3, D7, or whatever a game calls for — and roll any quantity of them alongside the standard dice.
