JR Trove
Free · Browser-only · No signup

Dice Roller

Roll any standard polyhedral dice — d4, d6, d8, d10, d12, d20, d100. Roll 1-20 dice at once. Running history of last 20 rolls with totals. Cryptographic randomness for fair results.

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D&D / RPG standard dice (d4, d6, d8, d10, d12, d20, d100). Uses Web Crypto with rejection sampling for unbiased distribution.
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Inside the tool

What powers the Dice Roller

7 standard polyhedral dice (d4, d6, d8, d10, d12, d20, d100)

Roll 1-20 dice at once

Sum total displayed

Last 20 rolls history

Rejection sampling for unbiased distribution

Built differently

Why the Dice Roller is different

Browser-native

The Dice Roller runs entirely in your browser. Input is processed locally — never uploaded, never logged, never cached anywhere outside your device.

No artificial limits

No daily quotas, no character ceilings, no "upgrade for more" walls. Every feature is the complete feature — the same on the first use as the thousandth.

Production-grade quality

Built to the same engineering bar as paid SaaS tools — accurate algorithms, audited logic, responsive design and accessibility-tested interactions.

Use Contexts

Common use contexts

  • Tabletop RPG sessions (D&D, Pathfinder, Call of Cthulhu)
  • Board games when you forget the dice
  • Probability demonstrations
  • Random number generation 1-N
Privacy by design

Private and secure

Zero upload

All processing happens in your browser. Input is never transmitted, logged or cached.

Works offline

Once the page loads, the tool runs without an internet connection. No network calls happen during use.

No tracking

No accounts, no cookies for tool state. Only aggregate analytics count visits at the page level.

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FAQ

Dice Roller questions

Yes — uses Web Crypto with rejection sampling. The modulo bias is eliminated, so each die face is equally likely regardless of die size.