Help with board games and tabletop role-playing
Roll dice or flip a coin whenever you need to, and roll several dice at once.
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Guide
The random games page has three modes: coin flip, dice and rock-paper-scissors. Every result comes from the browser's crypto.getRandomValues through the shared cryptoInt; the animations only visualise random results that have already been generated, or that are generated continuously.
Updated 2026-09-271 min read
The random games page has three modes: coin flip, dice and rock-paper-scissors. Every result comes from the browser's crypto.getRandomValues through the shared cryptoInt; the animations only visualise random results that have already been generated, or that are generated continuously.
Each six-sided die outputs 1–6; the computer's final throw in rock-paper-scissors is decided by a Web Crypto random index of one from three.
Roll dice or flip a coin whenever you need to, and roll several dice at once.
Rock-paper-scissors or a random order, so nobody argues about who starts.
Treat the results as a small game and glance at the heads-and-tails tally.
Math.random()?Not for the game results; the implementation uses the browser's Web Crypto random source.
Results and session tallies stay in the browser and are never uploaded.
Updated 2026-09-27
Coin flip, dice roll and rock-paper-scissors in one, with cryptographic randomness
Results come from the browser's cryptographically strong random source (crypto.getRandomValues), so they are fair.