Baïkal

Simple calendar and contact server with extremely low administrative overhead.

Open source CardDAV, CalDAV, and WebDAV framework and server.

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.

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.

A simple, dockerizable and fully translatable admin interface for sabre/dav based on Symfony 5 and Bootstrap 4, largely inspired by Baïkal.

Manage my Damn Life (MMDL) is a self-hosted front end for managing your CalDAV tasks and calendars.