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Microsoft To DoOpenTodoList
Free

Free to use from Microsoft.

 Free

Free and open source under the GPL-3.0 licence.

Windows, macOS, Android, iOS, Web Windows, macOS, Linux, Android, iOS
  • Free with no paid tier needed for the app itself
  • Works with Outlook tasks and Microsoft Planner
  • Local-first with plain file-based storage
  • Sync via Nextcloud, ownCloud, WebDAV or Dropbox
  • Closed source and tied to Microsoft's services
  • Most useful for people already in the Microsoft 365 ecosystem
  • No hosted sync service of its own
  • Simpler than dedicated task managers for complex projects
Downloadable app, Web application Downloadable app
Closed source Open source
License not stated License: GPL-3.0-or-later
Not stated if an account is needed No account needed
Not stated if it 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.