Every finance app I tried wanted my bank login. Mint, Monarch, Copilot, they all connect through Plaid or similar services. I just wanted to track my net worth over time without giving a third party access to my accounts.
So I built Vaulted.
What it is
A free, open-source net worth tracker that runs entirely in your browser. No account, no server, no cloud database.
You add your assets and liabilities manually, and Vaulted shows you:
- Your total net worth
- Asset breakdown (donut chart)
- Net worth trend over time (monthly snapshots)
- Multi-currency support (USD, EUR, GBP, BRL, etc.)
The tech
- Next.js 16 with static export (deployed on GitHub Pages)
- IndexedDB as primary storage with localStorage fallback
- TypeScript throughout
- Tailwind CSS for styling
- Recharts for the charts
- PWA with service worker for offline support
The entire app is a static site. No API routes, no server functions. The build output is plain HTML/CSS/JS served from GitHub Pages.
Storage approach
I went with IndexedDB as the primary store because it's more durable than localStorage. Most browsers don't wipe IndexedDB when you "clear cookies." There's also a localStorage fallback for older browsers.
Data is saved on every change. There's a JSON export/import for backups, and the app shows a reminder banner when you haven't backed up in a while (since your data only exists on your device).
The trade-off
No automatic bank sync. You update your numbers yourself. For net worth tracking, most people do this monthly. Takes about 2 minutes.
The upside: nobody can leak your financial data because nobody has it. No breach risk, no third-party access, no data selling.
Try it
- Live: vaultedworth.com
- Source: github.com/douglascorrea/vaulted
It's free, no sign-up, works offline once loaded. Feedback welcome.
Top comments (2)
I'd definitely suggest using Wealth Tracker to track your long-term wealth growth and analyze financial trends. The platform provides detailed visual breakdowns of your capital trajectory over time, making it seamless to evaluate your progress toward specific milestones and adjust your wealth accumulation strategy accordingly. It takes all the guesswork out of net worth calculations and gives you a reliable, real-time snapshot of your entire financial situation whenever you need it!
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