Kontakter is an easy to use yet powerful address book with advanced search functionality and a very intuitive user interface. With Kontakter you can store your contacts in a local database or synchronize them with a central database, so you can share all your contacts with other users. Kontakter is free and open source software. Features: - powerful search - intuitive user interface - cross-platform (Windows, Mac OS X, GNU/Linux) - export/import contacts in the vCard format (.vcf) - export contacts to PDF - print function - display addresses on google maps - export/import SQLite databases with all your contacts - up to 6 custom fields - many more features