Is my data uploaded to a server?

No. Everything runs locally in your browser using JavaScript. Your data never leaves your device.

Is the dice roll truly random?

Yes — the tool uses crypto.getRandomValues(), which is cryptographically secure and statistically uniform across all faces.

How many dice can I roll at once?

Up to 20 of each die type — so you can roll up to 120 dice in a single throw.

What does the modifier do?

The modifier is added to (or subtracted from) the total of all dice. A +5 modifier on a D20 roll shifts the result from 1–20 to 6–25, for example.

🎲

Dice Roller

Roll any combination of dice — D4, D6, D8, D10, D12 and D20 — with animated results and a full roll history log. Free, instant.

🎲 Random & Fun Tools Free Browser-based

Tool

Modifier (+/−)

Select dice above and click Roll

Standard Dice Types

Die	Faces	Common Use
D4	1–4	Damage dice (daggers, magic missiles)
D6	1–6	Standard die, attribute rolls, damage
D8	1–8	Damage dice (longswords, spells)
D10	1–10	Percentile rolls (paired), damage
D12	1–12	Heavy weapon damage (greataxe)
D20	1–20	Attack rolls, saving throws, skill checks

Cryptographic Randomness

All rolls use crypto.getRandomValues() — the same secure random number generator used for cryptographic applications. Results are statistically uniform with no bias toward any particular face.

Dice Roller

Standard Dice Types

Cryptographic Randomness

Frequently Asked Questions