Home / calendar-contacts / Keeper.sh

7 self-hosted alternatives to Keeper.sh (2026)

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.

License: AGPL-3.0 · Language: Docker source code

Baïkal source

Lightweight CalDAV and CardDAV server based on sabre/dav.

GPL-3.0PHP

DAViCal source

Server for calendar sharing (CalDAV) that uses a PostgreSQL database as a data store.

GPL-2.0PHP/deb

Davis

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

MITPHP

Manage My Damn Life source

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

GPL-3.0Nodejs/Docker

Radicale source

Simple calendar and contact server with extremely low administrative overhead.

GPL-3.0Python/deb

SabreDAV source

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

MITPHP

Xandikos

Open source CardDAV and CalDAV server with minimal administrative overhead, backed by a Git repository.

GPL-3.0Python/deb

All 8 apps in calendar-contacts →