Open Source Personal Finance
The convenience trap in personal finance is bank-sync: the cleaner the automatic feed, the more completely you've handed your entire money life to a service that can be acquired, shut down, or pivoted away from your history. The open source options here let you keep years of transactions and net-worth snapshots in a local file or your own server, so the picture of your finances outlives any single app.
Actual Budget
Local-first envelope budgeting app with multi-device sync and self-hosting
Firefly III
Self-hosted personal finance manager for tracking income, expenses, budgets, and reports
Ghostfolio
Open source wealth management software for tracking net worth across stocks, ETFs, and cryptocurrencies
Sure
Self-hosted all-in-one personal finance app, a community fork of Maybe Finance
Wallos
Self-hostable personal subscription tracker for recurring payments, budgets, and multi-currency expenses
Wealthfolio
Local-first portfolio tracker for investments, net worth, spending, and simulations
hledger
Plain text accounting with CLI, TUI, and web interfaces for multi-currency double-entry bookkeeping
Cashew
Budget and financial tracking app with cross-device sync, backups, and flexible transaction management
budgetzero
Offline-first, self-hosted zero-based budgeting with no ads or trackers