KeepSync
Self-hosted tab & bookmark sync across Chrome and Firefox. Your data stays on your server — no cloud, no tracking.
Features
🔒 Self-hosted
Your data lives on your own server. No third-party cloud, no tracking, no data mining.
🔄 Cross-browser
Sync tabs and bookmarks between Chrome and Firefox with the same self-hosted backend.
⚡ Real-time
WebSocket and SSE support with polling fallback for instant sync across devices.
📱 Device management
List, name, and revoke devices from the options page. Revocation propagates in real time.
🔖 Bookmark sync
Full bookmark tree sync with conflict resolution and UUID-based portable IDs.
📜 History backfill
Automatically backfill missed history events after a crash or offline period.
Open source & privacy-first
MIT licensed. Inspect the code, self-host the server, and control your own data.