CalDavZAP is an open source CalDAV web client implementation released under GNU Affero General Public License (version 3.0).

Main features:

• 100% JavaScript+jQuery CalDAV web client/application - no special server software required for standard setup (except the CalDAV server of course)
• server-based XML configuration generator (for special setup) with HTTP and LDAP authentication plugins
• asynchronous read-only and read/write calendar collection detection
• asynchronous background synchronization
• support for RFC compliant vCalendars (version 2.0) and automatic correction of most common errors in invalid vCalendars
• support for delegated calendars and subscribed calendars
• support for background calendars - if there is at least one event defined for the given day in a background calendar, the background color for that day will be pink/light-red
• read/write support for the following standard vCalendar components: VEVENT, VTODO, VALARM and VTIMEZONE
• read/write support for the following standard vCalendar attributes: DTSTART, DTEND, SUMMARY, DESCRIPTION, RRULE, LAST-MODIFIED, CREATED, DUE, RECURRENCE-ID, EXDATE, TRIGGER, ACTION, STATUS, PERCENT-COMPLETE, UID, VERSION, TZOFFSETFROM, TZOFFSETTO, DURATION, CLASS, TRANSP and URL
• drag&drop support for event move and "select for add new event" functionality
• full IANA timezone support
• localization support (English, Dutch, German, French, Italian, Danish, Slovak and Czech) - additional localizations are welcome!
• automatic detection of software updates
• clean user interface with SVG graphics
• and much more ...

NEW: demo available at http://www.inf-it.com/caldavzap/ (see the browser requirements below)

Latest stable release: version 0.8.1.1 [2013-02-25] - bugfix release (full changelog: changelog.txt)
The source code can be downloaded here: CalDavZAP_0.8.1.1.zip.

Fully supported HTML5 browsers: Safari/Mobile Safari, Webkit, Epiphany, iCab, Chrome and Firefox
Unsupported browsers: IE, Opera

Tested with the following CalDAV servers: DAViCal

For CalDavZAP configuration see comments in: config.js

For setup instructions see readme.txt in the zip file. Better documentation and more coming soon ...

If you want to subscribe to our mailing list (CardDavMATE + CalDavZAP) send an e-mail to the following address: <davclients+subscribe {at} inf-it {dot} com>

For feedback and support, feel free to contact us by email (English, Slovak, Czech or Hungarian please): <caldavzap {at} inf-it {dot} com>
For personal contact you can visit Bratislava :-)