Compare software

Horde GroupwareEGroupware
Free

Free and open source with no paid tier.

 Freemium

Free Community Edition; the EPL edition and cloud hosting are paid.

Web, Self-hosted Web, Self-hosted
  • Full groupware suite beyond mail, including tasks, notes and time tracking
  • CalDAV, CardDAV and ActiveSync sync
  • Wide feature set from email and calendar to CRM and helpdesk
  • Can be self-hosted or used as a German-hosted cloud service
  • Requires running and maintaining a PHP server
  • Older codebase with a long history of security fixes to track
  • Some features are reserved for the paid EPL edition
  • A large suite to set up and maintain on your own server
Self-hosted Web application, Self-hosted, Hosted service
Open source Open source
License: LGPL/GPL License not stated
Not stated if an account is needed Not stated if an account is needed
Not stated if it works offline Not stated if it works offline

Checked September 23, 2026

Checked October 2, 2026

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