What is an online dice roller?
An online dice roller simulates rolling physical dice using a random number generator. Choose your dice type — from a 4-sided d4 to a 100-sided d100 — and the tool picks a fair, unpredictable result for each die. Every face has exactly the same probability, just like a real die, making virtual dice perfect when you don't have physical ones at hand.
Dice types and where they are used
- d6 (six-sided): the classic die — Monopoly, Ludo, Yahtzee, and most board games.
- d4, d8, d10, d12: tabletop RPGs like Dungeons & Dragons use these for damage, healing, and checks.
- d20 (twenty-sided): the iconic D&D die for attack rolls and saving throws.
- d100 (percentile): generates 1–100 for probability tables and random events.
Roll up to 10 dice at once — the tool shows each individual result plus the total, exactly what you need for multi-dice game mechanics.
Coin flip: the fairest decision maker
When two options are equally good, a coin flip decides without bias or argument. Our flip uses your browser's cryptographically strong randomness, giving heads and tails a true 50/50 chance every time — fairer than most physical coins, which can have tiny weight imbalances. Use it to choose who goes first, settle friendly debates, or pick between two restaurants.
Are virtual dice really random?
Yes, for games and decisions. This roller uses the Web Crypto API, the same strong randomness browsers use for security. Results are unpredictable and evenly distributed across all faces. Like all software RNGs, it is not certified for regulated gambling — but for board games, classrooms, RPGs, and everyday choices, it is as fair as dice get.