Open Source Shared Calendar Servers
Self-hosted calendar server software for synchronizing schedules and events across multiple devices and platforms.
Open Source Shared Calendar Servers
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- kozea/radicale
Kozea/Radicale
4,395View on GitHubRadicale is a self-hosted CalDAV and CardDAV server implemented in Python that enables calendar and contact synchronization across multiple clients using open standards. It stores all data directly on the filesystem in a simple folder hierarchy, eliminating the need for an external database, and automatically tracks every change by committing modifications to a Git repository for version history and backup. The server distinguishes itself through a modular plugin architecture that allows custom Python modules to extend authentication, storage backends, and web interface functionality at start
Radicale is a self-hosted CalDAV and CardDAV server that synchronises calendars across devices using open standards, with multi-user authentication and regex-based permissions, though its built-in web interface is minimal—making it a capable but simpler CalDAV server for your search.
PythonCalDAV and CardDAV Protocol ServersCalDAV CardDAV ServersCalendar Servers - owncloud/core
owncloud/core
8,793View on GitHubThis project is a self-hosted cloud storage server and content collaboration platform implemented as a PHP web application framework. It functions as a centralized server for storing, synchronizing, and sharing files and data across multiple devices. The system operates as a WebDAV file server and a synchronization server for scheduling and contact information using CalDAV and CardDAV protocols. It features a plugin architecture that allows the server to be extended with additional applications and custom features. The platform provides capabilities for user and group access management, exte
ownCloud is a self-hostable platform that includes a full CalDAV server for calendar syncing and sharing, with multi-user support, a web interface, and cross-device synchronization, making it a comprehensive answer for this search.
PHPPrivate Synchronization Servers - nextcloud/server
nextcloud/server
35,797View on GitHubNextcloud is a self-hosted platform designed for private cloud storage, file synchronization, and collaborative team workspaces. It provides a comprehensive suite of tools for document editing, groupware services like calendars and contacts, and secure data management, all while ensuring users maintain full control over their infrastructure and data sovereignty. The platform distinguishes itself through a decentralized federated architecture that allows independent server instances to securely share data and collaborate across a network. It features a highly modular plugin ecosystem, enabling
Nextcloud is a self-hostable platform that includes a full-featured CalDAV calendar server with multi-user support, calendar sharing, permissions, cross-device synchronization, and a web interface, covering everything this search asks for.
PHPPrivate Cloud StorageCollaboration PlatformsFile Synchronization - apple/ccs-calendarserver
apple/ccs-calendarserver
Apple's open-source Calendaring server provides full CalDAV support for multi-user calendar sharing and cross-device synchronization, making it a flagship self-hostable calendar server that fits the search exactly.
Calendar Servers - sabre-io/baikal
sabre-io/Baikal
3,214View on GitHubBaïkal is a Calendar+Contacts server
Baïkal is a self-hostable CalDAV and CardDAV server that handles calendar hosting, multi-user support, and cross-device synchronisation out of the box, making it a direct match for a CalDAV calendar server with a built-in web interface.
PHPCalendar and Contact ServersCalendar and Contact ServersCalendar And Contacts
