Online Dice Roller
Roll virtual dice from d4 to d100 — free, no signup, with modifiers and a roll history.
- No rolls yet.
The rolling animation is a short CSS effect, not a physics simulation — the numbers are drawn first and the animation just plays while they are revealed. History lasts only while this page stays open and is cleared when you leave or reload.
What Is the Online Dice Roller?
An online dice roller is a tool that rolls virtual dice for board games, role-playing games, and classroom games — no physical dice needed. Pick a die from d4 to d100, choose how many dice to roll (1 to 6), add a modifier if your game uses one, and this roller shows each die result plus the total, with a history of your rolls for this session.
What Is It Used For?
Role-playing gamers use it for Dungeons & Dragons and similar games, where d20 checks and damage rolls are constant. Board game players use it when the dice are missing or when playing online with friends. Teachers use it for classroom games, random picks, and probability lessons. Game designers use it to test dice mechanics without reaching for physical dice.
Key Benefits
- Seven die types — d4, d6, d8, d10, d12, d20, and d100 in one tool.
- Up to 6 dice at once — roll a whole handful and see every die, not just the total.
- Modifiers supported — add or subtract a bonus, exactly like tabletop rules.
- Cryptographically random — rolls come from crypto.getRandomValues, your browser's secure random source.
- Session history — your recent rolls are listed (latest 20) so you can settle "what did I just roll?" disputes.
- Rolling animation — a short CSS shake effect plays while the result is revealed.
- Completely free and private — no signup, no account, and everything runs in your browser.
How to Use This Online Dice Roller
- Pick a die type: d4, d6, d8, d10, d12, d20, or d100 (d6 is the default).
- Set the number of dice (1 to 6).
- Set a modifier if your game uses one, for example +2 or -1 (0 means no modifier).
- Click Roll. Each die result appears, followed by the total including the modifier.
- Check the roll history below for your earlier rolls in this session, or click Clear History to start fresh.
Common Mistakes to Avoid With a Dice Roller
- Forgetting the modifier. A +2 that never gets entered changes the outcome — set it before rolling, not after.
- Reading only the total. Some games care about individual dice (for example, a natural 20 or a critical fail) — always check each die, not just the sum.
- Assuming the animation affects the result. It does not. The numbers are drawn first; the short CSS shake is only a visual effect, not a physics simulation.
- Expecting history to survive a reload. History is session-only and clears when you leave or reload the page, so note down important rolls elsewhere.
- Rolling more dice than the game allows. The tool allows up to 6 dice, but your game may allow fewer — the tool does not know your game's rules.
Frequently Asked Questions
Is this dice roller free? Yes, completely free — no signup, no download, no limits.
Is anything I roll uploaded anywhere? No. Rolling happens entirely in your browser, so your rolls never leave your device and nothing is stored on a server.
How random are the rolls? Rolls are generated with crypto.getRandomValues, the cryptographic random source built into modern browsers, which is far less predictable than a basic random function.
What dice can I roll? d4, d6, d8, d10, d12, d20, and d100 — seven die types covering most tabletop games.
How many dice can I roll at once? From 1 to 6 dice of the same type. If you enter more than 6, the count is reduced to 6.
How do modifiers work? The modifier is added to the sum of the dice after rolling. A roll of 12 and 8 with a +2 modifier totals 22; with a -1 modifier it totals 19.
Is the animation a physics simulation? No. The dice shake is a short CSS animation that plays while the result is revealed. The numbers themselves are drawn by the random generator before the animation finishes.
Can I play with friends online? Not through this tool — there is no multiplayer, no shared room, and no way for other players to see your rolls. Share your screen or read results aloud to play together.
Does the history persist after I close the page? No. History is session-only: it lasts while the page stays open and is cleared when you leave, reload, or close the page.
Can I roll a d100 as a percentile die? Yes, in the sense that it returns a number from 1 to 100. It does not split into tens and ones dice like a physical percentile pair.
What happens on a natural 20 or natural 1? Nothing special in this tool — it simply shows the number. Your game's rules decide what a natural 20 or 1 means.
Does it work on mobile? Yes. The tool runs in any modern mobile browser and the layout adjusts to small screens.
Can I use it for gambling or betting? It is a casual random tool, not a certified gambling device. Do not use it for real-money gambling, where certified randomness and regulation are required.
Final Thoughts
Missing dice should never stop a game night. Pick your die, roll, and let the history settle the arguments — the only thing this roller cannot do is pass you the snacks.