Top DAViCal Alternatives for Seamless Calendar Sharing
DAViCal is a well-known server for calendar sharing, built on the CalDAV protocol. It serves as a robust repository for calendars, to-dos, journal entries, and vCard entries, accessible via various CalDAV clients like Evolution, Lightning, and Apple iCal. However, as with any software, users often seek a DAViCal alternative that might offer different features, better scalability, or a more aligned licensing model for their specific needs. Whether you're looking for enhanced collaboration, broader platform support, or specific integration capabilities, there are several excellent options worth exploring.
Best DAViCal Alternatives
If DAViCal isn't quite fitting your requirements, or you're simply curious about what else is out there, this list provides a comprehensive overview of top contenders. Each alternative brings its unique strengths to the table, from comprehensive cloud solutions to specialized CalDAV/CardDAV servers.

ownCloud
ownCloud stands out as a powerful and flexible DAViCal alternative, offering a safe home for all your data. This freemium and open-source platform allows you to access and share your files, calendars, contacts, and more from any device. It's incredibly versatile, supporting Mac, Windows, Linux, Android, iPhone, and self-hosted environments. Key features that make it a strong alternative include Calendar integration, File management, File sharing, Calendar Sync, and support for WebDAV, making it a comprehensive solution beyond just calendar sharing.

SOGo
SOGo is an excellent open-source groupware server that emphasizes scalability and open standards, positioning it as a robust DAViCal alternative. It provides a rich AJAX-based web interface and supports multiple native clients. Available on Linux and as a web-based solution, SOGo features essential functionalities like CalDAV, CardDAV, Support for Multiple Users, and Scheduling, making it ideal for organizations needing a full-fledged collaboration suite.

Baïkal
For those seeking a lightweight and efficient DAViCal alternative focused purely on CalDAV and CardDAV, Baïkal is a superb choice. This free and open-source server is based on PHP, SQLite/MySQL, and SabreDAV. It's highly portable, running on Mac, Windows, Linux, and web platforms, with support for various mobile devices. Its core features include CalDAV, CardDAV, Sync Contacts, and Calendar Sync, making it a minimalist yet powerful solution for managing calendar and contact data.

Radicale
Radicale offers a complete CalDAV (calendar) and CardDAV (contact) server solution, serving as another strong DAViCal alternative, especially for those prioritizing simplicity and self-hosting. It's free and open-source, available on Mac, Windows, and Linux. Radicale focuses on its core function, providing seamless calendar and address book availability for both local and remote access through its CalDAV and CardDAV features.

HRCloud2
While not a direct CalDAV server, HRCloud2 provides a full-featured home-hosted Cloud Drive & Personal Assistant, making it a viable DAViCal alternative for users who need broader file management and collaboration capabilities alongside some personal organization features. This free and open-source Linux and web-based solution includes features like Cloud Storage, Contacts, File sharing, Media Streaming, and a Personal-assistant, offering a more comprehensive personal cloud experience.

FileAgo
FileAgo is a highly secure self-hosted file storage and collaboration platform, ideal for companies and teams. While its primary focus isn't CalDAV, it could serve as a DAViCal alternative for organizations looking for a unified platform to manage documents and facilitate team collaboration. It's available on Mac, Windows, Linux, and Web, offering features like Document sharing, File management, File sharing, and Real time collaboration, making it a robust option for secure data handling.

InfCloud
InfCloud is an integrated version of CalDavZAP and CardDavMATE, making it a direct and free DAViCal alternative for those who need a comprehensive CalDAV and CardDAV client. As an open-source and self-hosted solution, it includes all features of both clients, focusing specifically on CalDAV capabilities to manage your calendars efficiently.
Choosing the right DAViCal alternative depends entirely on your specific needs, whether that's robust file management, a minimalist CalDAV server, or a full-fledged groupware solution. Explore these options to find the perfect fit that aligns with your technical requirements and collaboration goals.