Notesnook: fully open source & end-to-end encrypted note taking alternative to Evernote (Free software)

Notesnook is a free (as in speech) & open source note-taking app focused on user privacy & ease of use. To ensure zero knowledge principles, Notesnook encrypts everything on your device using XChaCha20-Poly1305 & Argon2.

The project is written in JavaScript, TyepScript, React, and React Native for mobile apps.


  • Fancy user interface that is easy to use even for nontechnical users
  • Works online and with all modern web browsers
  • Built-in full-text search
  • Sync your notes and settings to the server
  • Mobile app for Android and iOS
  • Supports Markdown by default
  • Comes with a trash option to trash and not delete the notes
  • Easily manage your notes through tags and favorites
  • Built-in dark mode support
  • Notesnook encrypts your notes by default
  • Supports attachments with encryption option
  • Share password protection notes easily
  • App lock for your mobile note apps
  • Supports encrypted image, media files, and office documents
  • Offline mode
  • WYSIWYG editor with tables, checklist, code blocks, and Markdown shortcuts support
  • Native clients for Linux, Windows, and macOS


macOS Windows, Linux, Android, iOS, Web


GPL-3.0 License





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Hazem Abbas

Written by Hazem Abbas

Medical Doctor by trade, but also a software developer. Linux Avid user. I write primary; open-source medical apps, dev tools and libraries I use, and off-topic like horse riding.
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