Roll a D20
Roll a 20-sided die. A favorite of Dungeons & Dragons players. A natural 20 comes up 5% of the time.
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Is it really random?
Yes. Results come from crypto.getRandomValues, which draws on your device's secure randomness source, not a predictable formula. Nothing is stored or sent.
Frequently asked questions
Is the roll a d20 fair?
Yes, every outcome has the same probability.
Does it work offline?
Once the page has loaded, yes.
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