Coin Flip & Dice Roller

Flip a coin or roll standard and custom-sided dice fairly.

Coin flip

Two outcomes, one fair choice

Press the button to flip.

Dice roller

Standard or custom dice

Choose the dice settings and roll.

How to use it

A clear, quick workflow

  1. Choose the coin or dice area.
  2. For dice, select a standard die or enter 2–1,000 custom sides and choose 1–20 dice.
  3. Flip or roll; the result is selected before the optional animation starts.

Example

Rolling three D6 dice might produce 2, 5, and 6 for a total of 13.

Limits and behavior

Results use rejection sampling over Web Crypto values to avoid modulo bias. This utility is for everyday choices and games; it provides no gambling, betting, or payment function.

FAQ

Does the animation decide the result?

No. The random result is calculated first. Animation is only visual feedback and is removed when reduced motion is requested.