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Chance & numbers

Ledger

Numbers, odds, and chance.

Ledger is the console room after hours — dice rendered as instruments, probability shown with its math, truly random sequences with histograms. For game masters, statisticians, and anyone making decisions under uncertainty.

01 · Signature experiences
Made to feel like instruments.
5 tools
Live
Dice Roller
d4 to d100 rendered as a 3D console. Advantage, disadvantage, 4d6-drop-lowest — with a cyan HUD and a session telemetry log.
Live
Random Number Studio
Roll integers by the handful with optional seed for reproducibility. Unique, sorted, copy-ready output.
Live
Probability Calculator
Binomial, dice-sum, and combinatorics in one calculator — with the formulas shown.
Live
Coin Flipper
A coin flip with bias slider, running tally, and streak tracker. Surprisingly meditative.
Live
Rubik’s Cube
A playable 3D cube — drag to turn, scramble, and race the clock. Not chance, but it lives here too.
02 · Ready to use
Utilities from the ledger corner.
1 live
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