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Tasks.orgOpenTodoList
Free

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

 Free

Free and open source under the GPL-3.0 licence.

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

Checked September 23, 2026

Checked October 1, 2026

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