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KontactGeary
Free

Free and open source, developed by the KDE community.

 Free

The software is free under its open-source licence. Hosting, hardware and external…

Linux Linux
  • Mail, calendar, contacts and feeds in one window
  • Works offline with your data
  • Related messages collapse into conversations and full-text search is fast, which makes it pleasant for straightforward…
  • Best suited to the KDE Plasma desktop
  • Large suite with many settings to learn
  • It is Linux-only and deliberately minimal, with no built-in encryption, rules engine or calendar.
Downloadable app Downloadable app
Open source Open source
License not stated License: LGPL-2.1
No account needed Not stated if an account is needed
Works offline Not stated if it works offline

Checked September 24, 2026

Checked September 22, 2026

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