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Rolling dice converts mathematical probability into a tactile, suspenseful experience fundamental to tabletop role-playing and board games. Each die face represents an equally likely outcome, and combinations quickly create complex distributions that affect gameplay balance, difficulty, and narrative tension. Understanding those distributions helps players and designers predict averages, extremes, and the likelihood of pivotal critical hits or catastrophic failures.
Dice Roller pairs an in-browser random engine with a lightweight reactive interface, allowing you to specify the number of dice and sides, generate rolls instantly, and log every result in a scrolling table and live histogram. Because everything runs locally, results appear without delay, while the charting layer updates to reveal emerging probability curves.
Use it before your next campaign session to preview how swapping two six-sided dice for a single twelve-sider changes encounter lethality, or during play when you forget physical dice. The exportable CSV history lets you copy averages into spreadsheets for deeper analysis later. Outcomes are purely random and hold no monetary value.
Follow these steps to explore custom dice distributions:
Non-standard polyhedrals, such as d7s or d30s, appear in niche systems; supporting any positive integer lets you model them without restriction.
No. All rolls, charts, and CSV exports are generated locally in your browser and vanish when the page is closed.
The tool uses the browser’s native pseudorandom source, suitable for gameplay but not for cryptographic needs.
Select Clear History to reset totals, charts, and the summary box to their initial states.
Yes. Each new roll instantly refreshes bar heights so you can watch distributions stabilise as sample size grows.