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

Main features: NEW: see also InfCloud - integrated version of CalDavZAP & CardDavMATE (our CardDAV web client)

Demo available at (see the browser requirements below)

Latest stable release: version 0.13.1 [2015-09-22] - changelog: changelog.txt
The source code can be downloaded here:

Fully supported HTML5 browsers: Safari/Mobile Safari, Webkit, iCab, Firefox, Opera (15+) and Chrome
Unsupported browsers: IE

Tested with the following CalDAV servers: DAViCal, OS X server, Cyrus IMAP CalDAV (beta), SabreDAV, Baïkal, Radicale (>=0.8), openCRX and Oracle Communications Calendar Server

For setup instructions see the readme.txt and comments in the config.js.

If you want to subscribe to our mailing list (CalDavZAP/CardDavMATE/InfCloud) send an e-mail to the following address: < davclients-join {at} lists {dot} inf-it {dot} com > or use the mailing list web interface at: The full mailing list archive is available at:

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 Prague :-)