Google Contacts - Google Contacts is Google's contact management tool that is available in its free email service Gmail, as a standalone service, and as a part of Google's business-oriented suite of web apps Google Apps.
Monica - Monica is an open-source personal CRM to keep track of your friends and family.
Open Contacts - Open Contacts is an advanced address book program for managing contact info of individuals and...
EteSync - Secure, end-to-end encrypted and journaled personal information synchronization.
FullContact Card Reader - Automagically scan biz cards into LinkedIn/Gmail contacts
Free Address Book - In our contact management software you can store fast and easily name, phone numbers, birthdays, address, company name, city, mobile numbers, insurance and loan info, e-mail addresses.