Free Online Dice Roller
Updated July 2026
Roll any dice type — d4, d6, d8, d10, d12, d20, d100. Set custom dice counts and modifiers for tabletop RPG (D&D), board games, and probability — free.
Sometimes you need a fast, unbiased result. The Dice Roller delivers instant, fair outcomes for decisions, games, and creative brainstorming sessions.
Roll any dice type — d4, d6, d8, d10, d12, d20, d100. Set custom dice counts and modifiers for tabletop RPG (D&D), board games, and probability — free. Results are immediate — no waiting, no loading screens, no account required.
How to use the Dice Roller
Open the tool, enter your input, and get your result instantly. The interface is designed to be self-explanatory — no tutorial or manual needed. Where options exist, they are clearly labelled with sensible defaults. Your result can be copied to the clipboard or downloaded with a single click.
Tips for the best results
- Works great on smartphones for group settings and parties.
- Refresh or re-run as many times as you like — there are no usage limits.
Who uses the Dice Roller?
- Tabletop RPG players rolling dice digitally during online sessions via Roll20 or Discord.
- Board game enthusiasts replacing physical dice for quicker, cleaner game night rolls.
- Math teachers demonstrating probability distributions with custom multi-die rolling.
Common uses and search terms
The Dice Roller is frequently used for: dice roller, random dice, D&D dice. Whether you need a quick result or are working through a longer project, the tool handles all common variations without any configuration.
Why use Allio Tools's Dice Roller?
Everything runs locally in your browser. No data is sent to a server, logged, or stored anywhere. The tool is completely free with no usage limits, no premium tiers, and no account required. Available in 11 languages and optimised for all screen sizes, the Dice Roller works on desktop, tablet, and mobile with no app download needed.
See also:Password Generator · Spin the Wheel · Random Number Generator
How the Dice Roller works
Select the dice type: d4, d6, d8, d10, d12, d20, d100 (percentile), or custom sides.
Set the number of dice to roll (1–20).
Add a modifier (+/-) to the total if needed for RPG ability checks and combat rolls.
Click Roll to see each die result, the sum, and cumulative roll history.
Tips & tricks
- Use the Dice Roller on a shared screen during group activities to keep decisions transparent and fair for everyone.
- Combine the Dice Roller with other random generators on Allio Tools to build more complex decision workflows.
- Results are generated fresh every time using your browser's cryptographically seeded random number generator — no repeating patterns.
Frequently Asked Questions
What dice are used in Dungeons & Dragons?
D&D uses 7 standard dice: d4 (damage, small weapons), d6 (most common damage, ability scores), d8 (versatile weapons), d10 (heavy weapons, percentile second die), d12 (greataxe), d20 (ability checks, attacks, saves), d100/d% (tables).
What is a d20 roll and why is it important in D&D?
The d20 (20-sided die) is central to D&D 5e's core mechanic. Roll d20 + ability modifier vs Difficulty Class (DC) to determine success. Natural 20 = critical success (auto-hit in combat). Natural 1 = critical failure.
How do I roll with advantage or disadvantage?
Roll 2d20 and take the higher result (advantage) or lower result (disadvantage). The tool auto-calculates advantage/disadvantage results when you set dice count to 2 and enable the advantage toggle.
Can I roll 4d6 drop lowest for D&D character creation?
Yes. Set to 4d6, enable "Drop lowest die" in the advanced options, and the tool sums the three highest dice — the standard D&D 5e ability score generation method.
Are the dice rolls truly random?
The dice roller uses window.crypto.getRandomValues() for cryptographically secure randomness. Results are statistically indistinguishable from fair physical dice rolls.
Is the Dice Roller free to use?
Yes, the Dice Roller on Allio Tools is completely free with no sign-up or registration required. It works directly in your browser.
How does the Dice Roller work?
Roll any dice type — d4, d6, d8, d10, d12, d20, d100. Set custom dice counts and modifiers for tabletop RPG (D&D), board games, and probability — free. No data is sent to a server — everything runs locally in your browser for maximum privacy and speed.
Do I need to install anything to use the Dice Roller?
No installation needed. The Dice Roller runs entirely in your web browser on any device — desktop, tablet, or mobile.
Is my data safe when using the Dice Roller?
Completely safe. The Dice Roller processes everything locally in your browser. No input data, results, or usage information is ever transmitted to or stored on any server.
Does the Dice Roller work offline?
After the page loads for the first time, the Dice Roller works without an internet connection for all client-side processing. Tools that fetch live external data (such as DNS or network lookups) require an active connection.
Are the results from the Dice Roller truly random?
Yes. The Dice Roller uses your browser's built-in cryptographically seeded random number generator, which provides high-quality unpredictable randomness suitable for games and fair decisions.
Can I customise what the Dice Roller generates?
Yes. Where customisation options are available, you can add your own items, set numeric ranges, or adjust parameters before generating. Default settings are designed for the most common use case so you can get an instant result without any configuration.
Does the Dice Roller work on all browsers?
Yes. The Dice Roller is built with standard browser APIs and works on all modern browsers including Chrome, Firefox, Safari, and Edge — on both desktop and mobile. No plugins, extensions, or third-party software are required.
How do I save or export my results from the Dice Roller?
Select and copy the result text to paste into any document or app. For image tools, a Download button saves the file directly to your device. Your browser's built-in screenshot function also captures results quickly. No account or login is required.
Works with ChatGPT, Claude, Cursor, GitHub Copilot, VS Code, Poe and more — 106+ tools, zero data collection.