Free Online Dice Roller for D&D 5e
Roll any combination of tabletop dice right in your browser — d4, d6, d8, d10, d12, d20, and d100. The roller above supports full D&D dice notation, advantage and disadvantage rolls, modifiers, and keeps a running history of your results, so it's ready for everything from a quick ability check to a fistful of fireball damage. It's completely free, requires no account, and is optimized for phones so it works great at the table.
How to Use the Dice Roller
Type standard dice notation into the roller or use the quick preset buttons. Notation follows the familiar XdY+Z format: 1d20+5 rolls one twenty-sided die and adds 5, 2d6+3 rolls two six-sided dice and adds 3, and 8d6 rolls eight six-sided dice for that classic fireball. For d20 rolls, toggle advantage to roll twice and keep the higher result, or disadvantage to keep the lower — exactly as the 5e rules describe. Every roll is logged in your history so you can prove that natural 20 really happened.
When You Need Which Dice
In D&D 5e, the d20 drives ability checks, attack rolls, and saving throws — you roll 1d20, add your modifiers, and compare against a Difficulty Class or Armor Class. The other dice mostly handle damage and healing: a dagger deals 1d4, a longsword 1d8, a greatsword 2d6. Percentile rolls (d100) come up for wild magic surges and treasure tables. If you are new to the game, start with 1d20 plus your modifier for almost everything, and let the roller handle the math.
Frequently Asked Questions
Is this dice roller really random?
Yes. Rolls use your browser’s built-in random number generation, giving every die face an equal chance on every roll — no streaks, no memory of previous results.
What dice notation is supported?
Standard tabletop notation: any number of dice of any size with an optional modifier, like 1d20+5, 2d6+3, 4d8-1, or 8d6. Advantage and disadvantage are available for d20 rolls with a single toggle.
How do advantage and disadvantage work?
With advantage you roll two d20s and use the higher result; with disadvantage you use the lower. The roller shows both dice so you can see exactly what you rolled.
Does it work on my phone?
Yes — the roller is mobile-first and designed for use at the game table. It also remembers your roll history during your session.
Do I need an account?
No. The dice roller is free and works without any signup. A free account is only needed for tools that save data to the cloud, like the initiative tracker’s character mode.