Dice & Coin Roller
Random
Pick a die from d4 to d100, choose how many to roll, and get instant results with their sum. Or flip a fair coin. Rolls are powered by the Web Crypto API for unbiased random numbers, and your last 10 results stay in a history list.
Dice
Coin
How to use
- Pick a die (d4, d6, d8, d10, d12, d20, d100) and how many to roll.
- Hit Roll to see each die's result and the total.
- Or use Flip to get heads or tails.
- Recent rolls appear in the history list.
Frequently asked questions
- How random is it?
- It uses the browser's Web Crypto API (crypto.getRandomValues) with rejection sampling, so each face has exactly equal probability — no modulo bias.
- Can I roll more than 20 dice at once?
- The picker caps at 20 to keep the UI tidy. For Yahtzee or tabletop rolls you almost never need more.
- Why a d100?
- A d100 (percentile die) is commonly used in tabletop RPGs for percentage-based checks.
- Is the history saved?
- Only for the current page view — it clears when you reload or leave the page.
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