Calendar Programs that support iCalendar format.
Reference Wikipedia
Proprietary
- 37signals Backpack
- Alfresco - a collaboration portal that allows export of site calendars in the iCalendar format.
- Atlassian Confluence
- Apple iCal
- Bookeo - a booking system with calendar integrated with iCalendar.
- Calendarscope A calendar program that exports icalendar (.ics) files
- Contactizer
- Buni Meldware Communication Suite
- EventForward - an iOS application that allows export of calendar events in the iCalendar format.
- FirstClass
- Google Calendar
- Huddle
- Jalios JCMS
- KeepandShare - online suite of web applications, including a web calendar that allows import and export of calendar events in the iCalendar format.
- LifeSize Bridge
- LiquidPlanner
- Lotus Notes
- Meeting Maker (PeopleCube)
- melssCRM (CRM)[1][2]
- Microsoft Entourage
- Microsoft Exchange Server
- Microsoft Office Outlook 2000
- Microsoft Office Outlook 2007
- Microsoft Office Outlook 2010
- Microsoft Works Calendar
- myBookingWizard [3] Web 2.0 online booking application
- MyPhoneExplorer [4] FreeWare phone manager for SonyEricsson mobile phones.
- Novell Groupwise
- Nokia N9 Calendar
- Nokia N900 Calendar
- Nuvvo
- Projektron BCS
- Rainlendar
- Sun Java Calendar Server
- Teamwork agenda and meetings synchronizer
- Westlaw (TWEN)
- WinCalendar [5] Converts ICAL to Word and Excel formats (Windows).
- Windows Calendar
- Windows Live Calendar
- Wrike
- WebTrain - Web Conferencing Meeting Reminders
- Yahoo Calendar
- Yandex Calendar
- Zimbra Collaboration Suite
Open source
- Calcurse Text based calendar and to do organizer.
- Chandler
- Citadel
- CiviCRM With its CiviEvent module
- Claws Mail (the vCalendar plugin is required to handle iCalendar in Claws Mail)
- Darwin Calendar Server
- DAViCal server for calendar sharing
- Dolibarr ERP & CRM
- Drupal with its event module
- etm (text based event and task manager) export to iCal
- Evolution the Gnome email/calendar client
- Hippo CMS
- Horde
- Joomla there are several plugins available
- Kontact (namely KOrganizer and KMail)
- Lightning (Mozilla extension for Thunderbird mail/news client and SeaMonkey internet application suite)
- Mozilla Thunderbird mail/news client (with Lightning extension)
- Moodle will export iCalendar data or let you subscribe to a Moodle iCalendar feed.
- Mulberry
- Org-mode - an Emacs mode for organising your life.
- OLAT - LMS supporting import and export of personal and shared calendars via iCalendar
- Opengroupware.org
- Open-Xchange
- Osmo (PIM)[6]
- phlyMail (groupware)
- PHP iCalendar - viewer/parser to display iCals in a Web browser
- Plone open source content management system
- Request Tracker - a ticket-tracking and call-center application. Exports iCalendar data.
- SeaMonkey internet application suite (with Lightning extension)
- Semantic Mediawiki semantic extension to MediaWiki
- Simple Groupware
- SOGo - a integrated groupware with Apple iCal, Mozilla Thunderbird support and native Outlook compatibility
- SPIP a CMS that allows the export of its site calendar in the iCalendar format.
- Tiki Wiki CMS Groupware Calendar exports to iCal and generates hcal
- Tryton
- Sunbird (a Mozilla stand-alone application)
- TYPO3 via its Calendar Base Extension
- vTigerCRM (CRM)[7]
- WebGUI
- Webical
- Web2project
- Wordpress via plugins
- YaMA - Yet another Meeting Assistant
- Zimbra Collaboration Suite
- Zotonic via mod_calendar