Free Online Dice Roller

Quick Dice Roller lets you instantly roll a D4, D6, D8, D10, D12, or D20 right in your browser — no apps, no accounts, no downloads required. Whether you're deep in a Dungeons & Dragons campaign, playing a board game, or just need a quick random number, this tool has you covered. Roll a single die or up to 20 dice at once, with results displayed instantly alongside your full roll history.

How to Use This Dice Roller

Using Quick Dice Roller is simple. Click any die type at the top — D4, D6, D8, D10, D12, or D20 — to select it. The active die will highlight in green. Then use the + and − buttons to set how many dice you want to roll at once. Click Roll the Dice, or press the Space bar on your keyboard for a quick roll. Each individual die result appears on screen along with the total sum. Your last 20 rolls are automatically saved in the history panel so you can reference previous results without keeping notes.

Supported Dice Types

D4The 4-sided die is a tetrahedron — every face is a triangle. In D&D it's used for small weapons like daggers, as well as spells like Magic Missile and Cure Wounds at lower levels.

D6The classic 6-sided cube that most people think of when they hear "dice." Used in nearly every board game ever made, as well as D&D for fireballs, short swords, and creating characters with the 4d6 drop lowest method.

D8The 8-sided die looks like two square pyramids joined at the base. In D&D it's the damage die for longswords, warhammers, and rapiers, as well as healing spells like Cure Wounds at higher levels.

D10The 10-sided die is used in D&D for heavy crossbows and polearms, and is the basis of percentile rolls (rolling two D10s to get a number from 1–100). Also central to games like World of Darkness and Vampire: The Masquerade.

D12The 12-sided die is the Barbarian's best friend in D&D — it's the damage die for greataxes and the Barbarian's hit die. It's one of the less commonly used dice but hits hard when it shows up.

D20The 20-sided icosahedron is the most iconic die in tabletop gaming. In D&D 5e, virtually every action — attack rolls, skill checks, saving throws — is resolved with a D20 roll. Rolling a 20 is a Critical Hit; rolling a 1 is a Critical Fail.

What Is a Natural 20?

A Natural 20 — often called a "Nat 20" — is what happens when you roll the highest possible result (20) on a D20 die without any modifiers applied. In Dungeons & Dragons 5th Edition, a Natural 20 on an attack roll is an automatic Critical Hit, meaning you roll your damage dice twice and add them together. It doesn't matter how well-armored your enemy is — a Natural 20 always hits.

Outside of attacks, a Natural 20 on a skill check or ability check doesn't automatically succeed in D&D 5e (unlike some earlier editions), but it's still your highest possible result before modifiers. Our roller highlights Natural 20s in gold and Natural 1s in red so you never miss a dramatic moment at the table.

Rolling Multiple Dice (Dice Notation)

Tabletop games use a shorthand notation to describe dice rolls. "2d6" means roll two six-sided dice and add them together. "4d8" means roll four eight-sided dice. The number before the "d" is how many dice to roll; the number after is the die type. Here are some of the most common rolls you'll encounter:

4d6 drop lowestThe standard method for generating D&D character ability scores. Roll four D6s and discard the lowest result. Use our roller set to 4 dice on D6.

2d6Used in many board games including Catan, Monopoly, and Backgammon. Also used in D&D for great sword damage and several spells.

8d6The classic Fireball spell in D&D deals 8d6 fire damage — one of the most satisfying rolls in the game.

1d20 + modifierThe core resolution mechanic for D&D 5e. Roll a D20 and add your relevant ability modifier and proficiency bonus if applicable.

Which Games Use Dice?

Dice are at the heart of an enormous range of games. Here's a quick breakdown of how different popular games use them:

Dungeons & Dragons (D&D 5e) uses the full set of polyhedral dice — D4, D6, D8, D10, D12, and D20. The D20 is the primary resolution mechanic for almost every action in the game. If you're playing D&D without physical dice, our online roller covers every die type you need.

Pathfinder is closely related to D&D and uses the same set of polyhedral dice. The D20 is equally central to Pathfinder's action resolution system.

Monopoly, Catan, and most classic board games use only D6 dice. Catan uses two D6s rolled together to determine resource production each turn. Our roller handles this perfectly — set the quantity to 2 and the die to D6.

Yahtzee uses five D6 dice rolled simultaneously. Set quantity to 5 and die type to D6 to replicate a Yahtzee roll online.

World of Darkness / Vampire: The Masquerade uses pools of D10 dice, counting successes based on results of 6 or higher. Roll your dice pool using our D10 selector.

Why Use an Online Dice Roller?

Physical dice are great, but there are plenty of situations where an online dice roller is more practical. Playing D&D online over Discord or Roll20? Forgot your dice bag at home? Need to roll dice on your phone during a lunch break game? Quick Dice Roller works instantly on any device — phone, tablet, or desktop — with no installation needed. It's also useful for teachers and classroom activities that involve probability and random number generation.

Our roller uses JavaScript's built-in random number generator, which produces a uniformly distributed result across all sides of the chosen die — the same probability you'd get from a fair physical die.

Frequently Asked Questions

Is this dice roller truly random?

Yes. Quick Dice Roller uses JavaScript's Math.random() function, which generates a pseudo-random number uniformly distributed between 0 and 1. We multiply this by the number of sides and round down, giving each face an equal probability of being rolled. For most gaming purposes, this is statistically equivalent to a fair physical die.

Can I roll dice for D&D character creation?

Absolutely. The standard D&D 5e method for rolling ability scores is "4d6 drop lowest" — roll four D6s and discard the lowest result. Set the die selector to D6 and the quantity to 4, roll, then mentally discard the lowest number shown. Do this six times to generate your six ability scores (Strength, Dexterity, Constitution, Intelligence, Wisdom, and Charisma).

Does the dice roller work on mobile?

Yes, Quick Dice Roller is fully responsive and works on any smartphone or tablet browser. The interface scales to fit smaller screens with no loss of functionality. You can roll dice on your phone just as easily as on a desktop.

Can I roll more than one die at a time?

Yes — use the + button next to "Number of dice" to roll up to 20 dice simultaneously. The roller will display each individual die result as well as the combined total, making it easy to apply the result directly to your game.