Self-hosted Calendar & Contacts software
CalDAV and CardDAV protocol servers and web clients/interfaces for Electronic calendar, address book and contact management.
10 projects, sorted by GitHub stars (as recorded in the dataset). Star counts and dates come from the dataset snapshot, not live.
| Name | Description | License | Stars | Updated | Platforms | |
|---|---|---|---|---|---|---|
| Radicale | Simple calendar and contact server with extremely low administrative overhead. | GPL-3.0 | 5,126 | 2026-10-20 | Python, deb | Source |
| Baïkal | Lightweight CalDAV and CardDAV server based on sabre/dav. | GPL-3.0 | 3,338 | 2026-10-18 | PHP | Source |
| SabreDAV | Open source CardDAV, CalDAV, and WebDAV framework and server. | MIT | 1,726 | 2026-10-01 | PHP | Source |
| Keeper.sh | 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. | AGPL-3.0 | 1,409 | 2026-10-13 | Docker | Source |
| DavMail | 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. | GPL-2.0 | 771 | 2026-10-19 | Java | Source |
| Davis | A simple, dockerizable and fully translatable admin interface for sabre/dav based on Symfony 5 and Bootstrap 4, largely inspired by Baïkal. | MIT | 759 | 2026-10-06 | PHP | Source |
| Manage My Damn Life | Manage my Damn Life (MMDL) is a self-hosted front end for managing your CalDAV tasks and calendars. | GPL-3.0 | 644 | 2026-09-13 | Nodejs, Docker | Source |
| Xandikos | Open source CardDAV and CalDAV server with minimal administrative overhead, backed by a Git repository. | GPL-3.0 | 609 | 2026-10-17 | Python, deb | Source |
| dayGLANCE | 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. | MIT | 176 | 2026-10-19 | Javascript, Docker | Source |
| DAViCal | Server for calendar sharing (CalDAV) that uses a PostgreSQL database as a data store. | GPL-2.0 | 112 | 2026-05-27 | PHP, deb | Source |