TwirlseedRoll dice
Roll common polyhedral dice or choose a custom number of sides.
Recent flips
How it stays fair
Every result comes from your browser’s cryptographic random source. Rejected draws remove rounding bias. The answer is chosen before the animation starts.
A real coin is not quite fair. In 350,757 hand flips, coins landed the same way up they started 50.8% of the time (Bartoš and colleagues, 2023). This one is exactly 50/50.
Set how many dice to roll and how many sides each die has. Their faces are chosen before they tumble.