CalDAV services

CalDAV hosting services and providers.

Major Providers

• Google Calendar — Free CalDAV access for personal and Google Workspace accounts.
• Apple iCloud — CalDAV sync for Apple Calendar users.
• Nextcloud — Self-hosted collaboration platform with CalDAV.
• Fastmail — Email provider with CalDAV calendar hosting.
• mailbox.org — German email/hosting with CalDAV.
• Rackspace — Cloud hosting with CalDAV support.

Self-Hosted Options

• Radicale — Lightweight Python server.
• Baikal — PHP-based CalDAV/CardDAV server.
• Nextcloud — Full collaboration suite.
• SOGo — Scalable groupware server.

Choosing a Provider

Consider: storage limits, shared calendar support, scheduling (iTIP) support, CalDAV scheduling (RFC 6638) support, and mobile/desktop client compatibility.