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OpenTodoListTasks.org
Free

Free and open source under the GPL-3.0 licence.

 Free

Free and open source under the GPLv3, supported by donations.

Windows, macOS, Linux, Android, iOS Android
  • Local-first with plain file-based storage
  • Sync via Nextcloud, ownCloud, WebDAV or Dropbox
  • Many sync backends, including CalDAV and EteSync
  • Works fully offline
  • No hosted sync service of its own
  • Simpler than dedicated task managers for complex projects
  • Desktop version is still in alpha
  • Mainly an Android app
Downloadable app Downloadable app
Open source Open source
License: GPL-3.0-or-later License: GPL-3.0
No account needed No account needed
Works offline Works offline

Checked October 1, 2026

Checked September 23, 2026

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