sabre/dav
PHP framework for WebDAV, CalDAV, and CardDAV servers
1.7k stars 371 forks last commit first released BSD-3-Clause
Actively maintained
Last commit 15 Jul 2026.
sabre/dav is a widely used PHP framework for implementing WebDAV, CalDAV, and CardDAV servers. It provides the core protocol handling and extensible building blocks needed to add file, calendar, and address book sync capabilities to PHP applications.
Key Features
- WebDAV server framework for file storage, synchronization, and remote authoring
- CalDAV support for calendar storage and scheduling workflows
- CardDAV support for address books and contact synchronization
- Extensible architecture with plugins, authentication hooks, and custom backends
- Designed to integrate into existing PHP applications and infrastructures
Use Cases
- Add WebDAV file access to a PHP application or custom storage backend
- Provide CalDAV/CardDAV endpoints for syncing calendars and contacts to clients
- Build groupware or collaboration products that need standards-based sync
sabre/dav is best suited when you need a standards-compliant DAV implementation with flexibility to connect to your own data models and storage layers, while keeping protocol complexity out of your application logic.
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