sabre-io/Baikal

Baïkal is a Calendar+Contacts server

PHP

3,333

890 commits

updated Aug 13, 2026

See the code

README

Baïkal

continuous-integration

This is the source repository for the Baïkal CalDAV and CardDAV server.

Head to sabre.io/baikal for information about installation, upgrading and troubleshooting.

A German tutorial about installation of Baïkal, using it together with Thunderbird, Android and DavX5, sharing calendars, database maintenance and security can be found here. Its focus is for people with not so much IT experience. Therefore it is very detailed, step by step with a RaspberryPI used as server.

With the same objective, a French guide, about installation on Debian, database maintenance, security and dealing with iOS clients can be found here. Its focus is also for people with not so much IT experience.

Upgrading

Please follow the upgrade instructions.

Credits

Baikal was created by Jérôme Schneider from Net Gusto and fruux and is now developed by volunteers. Many thanks to Daniel Aleksandersen (@zcode) for greatly improving the quality of the project page.

sabre-io/Baikal

Baïkal is a Calendar+Contacts server

PHP

3,333

890 commits

updated Aug 13, 2026

See the code

README

Baïkal

continuous-integration

This is the source repository for the Baïkal CalDAV and CardDAV server.

Head to sabre.io/baikal for information about installation, upgrading and troubleshooting.

A German tutorial about installation of Baïkal, using it together with Thunderbird, Android and DavX5, sharing calendars, database maintenance and security can be found here. Its focus is for people with not so much IT experience. Therefore it is very detailed, step by step with a RaspberryPI used as server.

With the same objective, a French guide, about installation on Debian, database maintenance, security and dealing with iOS clients can be found here. Its focus is also for people with not so much IT experience.

Upgrading

Please follow the upgrade instructions.

Credits

Baikal was created by Jérôme Schneider from Net Gusto and fruux and is now developed by volunteers. Many thanks to Daniel Aleksandersen (@zcode) for greatly improving the quality of the project page.

Project health

Overall

4.7/10

Maintained

10/10

Code review

3/10
OpenSSF Scorecard

Significant stargazers

(top 24 of 31)

Rui Carmo

706 followers · starred Apr 2024

Stephen

108 followers · starred Jul 2015

David Müller-Widmann

225 followers · starred Feb 2014

Alexandra Catalina

119 followers · starred Aug 2026