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DAViCal

Free plan APIiPhoneLinuxMacSelf-hostedWeb+1

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DAViCal's own site

What DAViCal is

DAViCal is free, self-hosted server software for sharing calendars through CalDAV. It stores iCalendar resources on a remote shared server and keeps event data in an SQL database. Users can delegate read and write access, edit shared calendar entries, and schedule meetings with free/busy information. The administration interface manages users, resources, groups, memberships, and privileges, while calendars and events are handled through clients. Backward-compatible WebDAV access is available in read-only or read-write modes, although read-write mode is not recommended. Named clients include Evolution, Thunderbird, Apple iCal, and iPhone, with access to calendars and address books. LDAP authentication documentation covers OpenLDAP, Active Directory, SSL/TLS, and group mapping. Installation requires a PHP-capable web server, PHP 5.1 or greater, PostgreSQL 8.1 or greater, and Andrew’s Web Libraries. Deployment is on a server, with Debian packages recommended. Community support is provided through the wiki, IRC, and mailing list.

Who it suits

DAViCal suits organizations or individuals that can install and administer a self-hosted calendar server. It fits users needing CalDAV sharing, delegation, LDAP authentication, and client access across listed platforms.

What it does well

  • Free Software under GPL
  • Shared calendar editing
  • Free/busy meeting scheduling
  • LDAP authentication documented
  • Access to calendars and address books

What to know first

  • Self-hosted deployment required
  • Windows use not recommended
  • Read-write WebDAV not recommended
  • Requires PHP and PostgreSQL

Plans

PlanBilled and limitsPrice
DAViCalFree Software licensed under the General Public License · self-hosted serverFree

As davical.org lists them, read 12 Oct 2026. The maker's own page has the final word.

Verdict

DAViCal provides a free, self-hosted CalDAV server with sharing, delegation, scheduling, and broad client access. Its server requirements and administration responsibilities make deployment planning important.

Facts from DAViCal's own pages

Administration
The administration interface manages users, resources, groups, group membership and privileges, but does not display or maintain calendars or events. · davical.org, 12 Oct 2026
Client compatibility
The site names Evolution, Thunderbird, Apple iCal and iPhone among CalDAV clients, and says clients can access calendars and address books. · davical.org, 12 Oct 2026
Deployment
DAViCal is a web application installed on a server; the site recommends Debian packages and says Linux, FreeBSD, Mac OS and Windows use may be possible with prerequisites and adjustments. · davical.org, 12 Oct 2026
Free plan
Yes · davical.org, 22 Sept 2026
LDAP integration
The DAViCal wiki documents LDAP authentication, including support for OpenLDAP and Active Directory, SSL/TLS connections, and group mapping. · wiki.davical.org, 12 Oct 2026
License
DAViCal is Free Software licensed under the General Public License. · davical.org, 12 Oct 2026
Notable limitation
DAViCal’s site says Windows is not recommended unless internal IT policies require it. · davical.org, 12 Oct 2026
Purpose
DAViCal is a server for calendar sharing that implements CalDAV and stores iCalendar resources on a remote shared server. · davical.org, 12 Oct 2026
Requirements
The installation guide lists a PHP-capable web server, PHP 5.1 or greater, PostgreSQL 8.1 or greater, and Andrew’s Web Libraries as dependencies. · davical.org, 12 Oct 2026
Security configuration
The installation guide says the PostgreSQL database can be hosted separately from the web server, a setup it recommends for increased security or scalability. · davical.org, 12 Oct 2026
Shared calendars
Yes · davical.org, 22 Sept 2026
Sharing
It supports basic delegation of read and write access, shared editing of calendar entries, and meeting scheduling with free/busy information. · davical.org, 12 Oct 2026
Storage
DAViCal uses an SQL database to store event data. · davical.org, 12 Oct 2026
Support
The project directs users to its wiki, the #davical IRC channel on irc.oftc.net, and its general mailing list, and describes its support model as community-based. · davical.org, 12 Oct 2026
WebDAV
DAViCal supports backward-compatible WebDAV access in read-only or read-write mode, though the site says read-write mode is not recommended. · davical.org, 12 Oct 2026

Where DAViCal stands on Freedom251

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