SabreDAV
Open source CardDAV, CalDAV, and WebDAV framework and server.
Maintained, but at a slower pace than the leaders in its category.
Commit activity more than 24% of tracked projects; popularity more than 45%. How this is calculated.
Commits, last 11 months
| Stars | 1.7k |
|---|---|
| Latest release | 4.7.1 · 7 Jul 2026 |
| Repo updated | 2 Aug 2026 |
| Licence | MIT |
| Built with | PHP |
Is SabreDAV actively maintained?
SabreDAV is under active development: 75 commits landed over the last 11 months, averaging roughly 14 commits a month in the most recent quarter.
Activity is accelerating: the last quarter carried 310% more commits than the one before it.
The most recent tagged release, 4.7.1, is about 3 months old.
SabreDAV ranks #8 of 10 tracked calendar & contacts projects. Several better-maintained options exist in the same category — they are listed below.
What SabreDAV actually does
SabreDAV is an open-source framework and server implementation for CardDAV, CalDAV, and WebDAV protocols. It allows you to host your own calendar, contact synchronisation, and file storage endpoints on your own infrastructure. Built using PHP and released under the MIT licence, it provides the backend components needed to sync PIM data across multiple devices.
Best fit: Developers and system administrators looking to integrate standards-compliant calendar and contact sync into an existing PHP application or custom server setup.
Worth knowing: It requires significant manual configuration and familiarity with WebDAV standards rather than offering a ready-to-use end-user product out of the box.
Deployment notes
You will typically need a standard PHP runtime environment, a web server such as Nginx or Apache, and a persistent database backend to store calendar and contact records.
Links
Alternatives to SabreDAV
Projects in the same categories, ordered by health score.
Simple calendar and contact server with extremely low administrative overhead.
Day planner with drag-and-drop time blocking, inbox, recurring tasks, habits, routines, goals, projects and Pomodoro focus mode, plus iCal and CalDAV calendar sync. Data stays in the browser, with optional WebDAV or GLANCEvault sync.
Calendar syncing tool that pulls and pushes events between calendar sources and destinations via iCal/ICS or OAuth, with support for anonymized busy/free events.
Open source CardDAV and CalDAV server with minimal administrative overhead, backed by a Git repository.
POP/IMAP/SMTP/Caldav/Carddav/LDAP exchange gateway allowing users to use any mail/calendar client with an Exchange server, even from the internet or behind a firewall through Outlook Web Access.
Manage my Damn Life (MMDL) is a self-hosted front end for managing your CalDAV tasks and calendars.