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QOwnNotesMarknote
Free

Free and open source under the GPL.

 Free

Free and open source under the GPL-2.0-or-later licence.

macOS, Linux Windows, macOS, Linux
  • Notes are plain Markdown files, so nothing is locked in a proprietary format
  • Works with Nextcloud and ownCloud Notes, or any file sync you already use
  • Notes stored as plain Markdown files you own
  • Rich text editing with an optional source mode
  • Many of the better features assume a Nextcloud or ownCloud server
  • The interface is dense and Qt-flavoured rather than native anywhere
  • No built-in sync between devices
  • Fewer features than larger knowledge-base apps
Downloadable app Downloadable app
Open source Open source
License: GPL-2.0 License: GPL-2.0-or-later
No account needed No account needed
Works offline Works offline

Checked September 21, 2026

Checked October 1, 2026

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