Dice Roller — Free Online Dice Simulator

About This Tool

What is the Online Dice Roller?

Our dice roller simulates rolling any standard polyhedral dice used in tabletop RPGs, board games, and educational settings. Choose from D4, D6, D8, D10, D12, D20, and D100 — the full set used in games like Dungeons & Dragons, Pathfinder, and many others.

Roll up to 20 dice at once with an optional modifier (positive or negative) added to the total. You can view individual roll results alongside the sum, making it easy to apply game mechanics like advantage, damage rolls, or ability score generation.

Everything runs client-side in your browser using JavaScript's Math.random(). No rolls are logged, stored, or sent to any server. The tool is completely free and works on any device.

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Tabletop RPGs

Roll attack dice, damage dice, saving throws, and ability checks for D&D, Pathfinder, and other systems.

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Board Games

Simulate dice rolls for any board game when physical dice aren't available or you need a quick roll.

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Education

Teach probability, statistics, and expected values using configurable dice with visible individual results.

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Game Design

Playtest dice mechanics, compare probability distributions, and prototype new game systems.

How To Use

Start in seconds

// no signup, no install — just configure and generate.

Choose Dice Type

Select your die from D4, D6, D8, D10, D12, D20, or D100. Each represents a different polyhedral die commonly used in tabletop gaming.

Set Number of Dice

Choose how many dice to roll at once — from 1 to 20. All dice will be the same type (e.g., 4d6 for ability scores).

Add a Modifier

Optionally enter a positive or negative modifier that gets added to the total roll. Great for attack bonuses, skill modifiers, etc.

Roll & Read Results

Click Roll Dice to see your total. Enable "Show individual rolls" to see each die's result alongside the sum.

FAQ

Frequently asked questions

D4, D6, D8, D10, D12, D20, and D100 — the standard set of polyhedral dice used in tabletop RPGs and board games.

The roller uses Math.random(), a pseudorandom number generator. It's statistically uniform and perfectly suitable for games, simulations, and educational use — but not for cryptographic purposes.

Yes, you can roll up to 20 dice of the same type simultaneously. The tool shows both the total and, optionally, each individual die result.

The modifier is a number added to (or subtracted from) the total roll. In RPGs, this often represents a character's ability bonus, proficiency modifier, or other adjustments.

Absolutely. The roller supports all standard D&D dice (d4, d6, d8, d10, d12, d20) plus percentile (d100). You can roll ability scores (4d6), attacks (1d20+5), damage (2d6+3), and more.

Online Dice Roller

What is the Online Dice Roller?

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Frequently asked questions

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