ChaosDB

A database built around deterministic simulation testing — the same discipline FoundationDB and TigerBeetle use. Two live demos below, both running entirely in your browser, no backend.

Break My Database →

The real Raft simulator, compiled to WebAssembly. Run a live cluster, kill nodes, inject a real bug, and watch the safety checker catch it.

Time-travel replay debugger →

Swim-lane trace viewer with a bundled recording of the exact safety violation the playground catches.