Overview
Ledger is a local-first personal finance tool. Everything runs in your browser; your data never leaves your device unless you export it.
Problem
The personal finance market has an uncomfortable trade-off: convenience in exchange for handing over every transaction. I wanted the convenience without the trade.
Approach
Built on DuckDB-WASM for fast SQL over local data, with a clean ingest pipeline and an opinionated categorization model. Sync is optional and end-to-end encrypted.
Selected details
- Local-first architecture with optional encrypted sync
- DuckDB-WASM for millisecond analytics
- Deterministic classification rules + fuzzy overrides
Outcome
A surprisingly fast finance tool that respects privacy as a baseline, not a feature.