CardDAV Clients

Free Software

• Evolution
• kcarddav - Not working
• Thunderbird
  • native support - work not started - see here
  • SoGo Connector provides CardDAV for Thunderbird
  • CardBook provides an enhanced address-book, manages all contacts under the VCard standard, and synchronizes with CardDAV.
• CardDavMATE - Open source web CardDAV client / HTML5 Javascript+jQuery web application (compatible with Safari, Webkit, Chrome and Firefox)
• Roundcube CardDAV-Plugin - Open source Roundcube Webmail CardDAV-Plugin
• PHP CardDAV-Plugin - Open source PHP CardDAV-Client
• CardDAVSyncOutlook - Outlook address book synchronization with CardDAV

Mobile:

• DAVdroid – open-source CalDAV/CardDAV sync adapter for Android 4+

Non-free Software

• Apple Address Book (MacOS 10.5 and higher)
• iOS Contacts App (iPhone, iPad, iPod touch)
• iCal4OL 2.10.0 does support CardDAV for DAViCal >= 0.9.9.3
• eM Client 3 - cost free for individuals, Windows only.
• CardDav-Sync beta for Android
• cFos Outlook DAV Cloud synchronisation of your Outlook calendar, tasks, and contacts (nonfree)