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CalindoriEvolution
Free

Free and open source under the GPL-3.0 or later licence.

 Free

Free and open source, part of the GNOME project.

Linux Linux
  • Stores calendars in the standard iCal format
  • Handles both events and to-do items
  • Mail, calendar, contacts and tasks in one program
  • Exchange Web Services plugin connects to Microsoft 365
  • Linux only
  • Basic feature set compared with full desktop calendar suites
  • Linux only
  • Heavier than a mail-only client, and slower to start
Downloadable app Downloadable app
Open source Open source
License: GPL-3.0-or-later License: GPL-2.0-or-later and LGPL-2.1-or-later
No account needed No account needed
Works offline Works offline

Checked October 1, 2026

Checked September 21, 2026

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