Dice simulator

Rolling dice is a classic way to introduce randomness into games, decisions, or experiments. Whether you’re playing a board game, running a tabletop RPG, or exploring probability concepts, having a fair and unpredictable dice roll is essential. Humans often struggle with true randomness, and even simple pseudo-random generators can show patterns over time. That’s why this widget uses cryptographically secure randomness to simulate dice rolls.

The widget allows you to specify the number of dice to roll, the minimum value (usually 1), and the maximum value (e.g., 6 for a standard die). Each roll generates independent results using the Web Crypto API’s crypto.getRandomValues(), ensuring high-quality randomness suitable for games and simulations.

For example, rolling 3 dice with values from 1 to 6 might result in: Die 1: 4, Die 2: 2, Die 3: 6. The results are displayed clearly, and you can roll again by clicking the button.

Randomness and limits

Rolls use crypto.getRandomValues() rather than Math.random(). Each result is an integer between the configured minimum and maximum, inclusive. Rolls are independent, so short runs do not have to look evenly distributed.

The simulator is suitable for games and ordinary simulations, but it is not a certified gambling or auditing system. The amount and range are stored in localStorage.

Related tools

• Random number generator: Generate lists of random numbers within a specified range.

Further Reading

• Wikipedia: Dice

Widget made with staark