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LibreNotesNotesnook
Free

Free and open source under the AGPL-3.0.

 Freemium

A free tier covers unlimited notes and sync across devices. A paid Pro subscription adds…

Android, Self-hosted Windows, macOS, Linux, Android, Web
  • End-to-end encryption, server sees only ciphertext
  • Markdown notes with live preview
  • End-to-end encrypted on device with XChaCha20-Poly1305 and Argon2, so the service holds no readable data
  • The full client codebase is published, which makes the privacy claim auditable
  • Requires running your own server
  • Built for a single owner, not shared notebooks
  • An account is required; it is a sync service, not a local-only app
  • Encryption means no server-side search, and losing your password loses the notes
Downloadable app, Self-hosted Downloadable app, Web application
Open source Open source
License: AGPL-3.0 License: GPL-3.0
No account needed Account needed
Not stated if it works offline Works offline

Checked October 2, 2026

Checked September 21, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.