iCal Compatible Calendars Proprietary Calendar Applications Open Source Calendar Applications

Proprietary Calendar Applications

37signals Backpack Airset Atlassian Confluence Apple iCal Bookwhen - Calendar based booking Clio Contactizer Buni Meldware Communication Suite Facebook Famundo FirstClass Flightmap Google Calendar Intoweb Calendar Jalios JCMS Joint Contact Joyent Connector Kickstart Lotus Notes Microsoft Entourage Microsoft Exchange Server Microsoft Office Outlook 2007 Microsoft Works Calendar Novell GroupWise Novell Teaming Nuvvo Rainlendar Sun Java Calendar Server Teamwork agenda and meetings synchronizer Westlaw (TWEN) Windows Calendar Windows Live Calendar WorkWeek 2 Personal Organizer Wrike WebTrain - Web Conferencing Meeting Reminders WinCalendar for Windows, Word & Excel Zimbra Collaboration Suite

Open Source Calendar Applications

Chandler Citadel Claws Mail (vCalendar plugin is required to handle iCalendar in Claws Mail) Darwin Calendar Server Drupal with its event module Evolution the Gnome email/calendar client Horde Kontact (namely KOrganizer and KMail) Lightning (a Mozilla extension for Thunderbird) Moodle will export iCalendar data or let you subscribe to a Moodle iCalendar feed Mulberry OLAT - LMS supporting import and export of personal and shared calendars via iCal OpenCRX Opengroupware.org Open-Xchange PHP iCalendar web based display of shared calendars Plone open source content management system Simple Groupware SPIP a CMS that allows the export of its site calendar in the iCal format Sunbird (a Mozilla stand-alone application) TYPO3 via its Calendar Base Extension WebCalendar WebGUI Webical Zimbra Collaboration Suite