About roll-dice.co

roll-dice.co is an independent, ad-free-to-start web app built for one job: rolling dice online, quickly and fairly, without an app install, a sign-up form or a cluttered page standing between you and a result.

Why we built it

Most dice you find online either bury the roller under a wall of text, load slowly on mobile, or run on randomness that isn't actually well-distributed. We wanted something that opens instantly, works the same on a phone at the game table as it does on a laptop, and is honest about how the numbers are generated.

How the randomness works

Every roll on this site is generated with your browser's built-in cryptographically secure random number source (the Web Crypto API), read through rejection sampling so every face of every die keeps an exactly equal chance of coming up — never a simple, potentially biased timer-based function. No roll is computed on a server or stored anywhere; it happens entirely on your device.

What we don't do

• We don't require an account, email address or download.
• We don't store or transmit your individual rolls.
• We don't run third-party ad networks or invasive tracking scripts.

Questions, bug reports or feature requests are always welcome — see the contact pagefor how to reach us.