Dice Roll Simulator – Free Online Tool
Free online Dice Roll Simulator tool to roll virtual dice online. Simulate dice rolls for games, probability, and random number generation. All simulation happens locally.
Example Output
Each die shown individually plus the sum, like an in-person roll.
[4, 2, 6] — total 12
What is Dice Roll Simulator?
Dice Roll Simulator rolls virtual dice using the Web Crypto API so results are cryptographically unbiased. Supports the full RPG set (d4, d6, d8, d10, d12, d20, d100) and multi-die pools. Useful when you forgot your dice bag, want to roll d100 without two d10s, or need a quick random integer in a specific range.
Why use this tool?
- Instant results — no waiting on a server or upload progress bar
- Touch-friendly UI, fine on phones for on-the-go edits
- No registration, account, or installation required
- Designed for everyday quick tasks — open the page, get the answer, move on
- No upsell to a paid plan: every feature is free forever
How to use
- Pick the dice type (d4, d6, d8, d10, d12, d20, d100) and how many to roll
- Click Roll to see each die's face and the total
- Keep rolling to gather statistics over many trials
- Use the history list to record results during a tabletop session
Examples
D&D combat roll
Roll 1d20 + see the natural result before applying modifiers, then 2d6 for damage on a hit.
Roll for stats
4d6 drop the lowest is the classic D&D 5e ability-score method — roll, glance at the highest three, and note the sum.
Resolve a casual decision
Three options? Roll 1d3. Six? 1d6. Faster than a coin flip when there are more than two choices.
Common use cases
- Tabletop RPGs (D&D, Pathfinder, etc.) when physical dice aren't at hand
- Probability demonstrations and statistics class examples
- Generating random integers within bounded ranges (1-100 via d100)
- Quick decision tools when picking between several options
Troubleshooting
- Results feel "non-random" (lots of the same number in a row).
- Streaks are normal in true randomness — humans expect more alternation than chance produces. The generator uses crypto.getRandomValues which is genuinely unbiased.
Frequently Asked Questions
Pick the number of dice and the type (d6, d20, d4, etc.), then click Roll. The result shows individual dice values plus the total. Roll again as many times as you want — each roll is independent.
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