Your notes. Your device. Your rules.
Anchor is a local-first note-taking app. Every keystroke is saved to your browser instantly. Works offline. Syncs when you're ready. No cloud required.
Offline by Default
Your notes live in your browser, not on a server. Close your laptop, lose your connection — your work is always there.
Conflict-Free Sync
Edit on your phone and your laptop simultaneously. CRDTs (the same tech behind Notion and Figma) merge everything automatically. No conflicts. Ever.
Real-Time Collaboration
Open the same note in two tabs. Type in both. Watch the magic. Every keystroke syncs in milliseconds.
How it works
Write
Open Anchor and start typing. Saved instantly.
Go offline
Keep working. Everything persists locally.
Reconnect
Changes sync automatically. No manual save.
Built with Yjs (CRDTs), IndexedDB, Tiptap, and WebSockets. Every architectural decision prioritizes your data ownership.