KAddressBook

KAddressBook stores all the personal details of your family, friends and other contacts. It supports large variety of services, including NextCloud, Kolab, Google Contacts, Microsoft Exchange (EWS) or any standard CalDAV server.

Features

• Powerful search. KAddresbook has configurable filters and powerful search capabilities.
• Duplicate detection and merging. KAdressbook can find duplicated contacts from multiple sources can merge them into a single contact.
• Integration. Integrates with other Kontact components, e.g. exporting Birthday reminders to KOrganizer.
• QR codes. KAddressbook can display a QR code for each contact to quickly scan it into your phone or send to someone.
• Good standard support. KAddresbook can import and export contacts from and to nearly every address book standard.
• LDAP integration. Can connect to multiple LDAP servers, which can then be used for contact autocompletion when composing emails in KMail.