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kardi notesJoplin
Free

Free and open source under the GPL 3.0.

 Free

The applications are free and open source. Joplin Cloud is an optional paid sync service…

Windows, macOS, Linux, Android, iOS, Web Windows, macOS, Linux, Android, iOS, Browser extension
  • Encrypted notes readable only by you
  • Clients for desktop, mobile and the web
  • Offline first: all data stays on the device, so notes work without a connection
  • End-to-end encrypted sync through Nextcloud, Dropbox, OneDrive, WebDAV, S3 or Joplin Cloud
  • Lost password or device means lost data
  • Built and maintained by a single developer
  • The editor and interface feel less polished than commercial note apps
  • Setting up sync and encryption takes a few steps the first time
Downloadable app, Web application Downloadable app, Browser extension
Open source Open source
License: GPL-3.0 License: AGPL-3.0-or-later
Not stated if an account is needed No account needed
Not stated if it works offline Works offline

Checked October 2, 2026

Checked September 20, 2026

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