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In this paper, we propose a client side identity management solution. The proposed system provides user registration and profile submission in very convenient manner. Web site login and profile update are also performed conveniently. In the proposed system, a client software called user identity manager provides identity management function a site card is generated for each id that is registered in Web sites during registration. A secret number is generated and shared between client and Web site. When a user visit a Web site, user select one of site card, then the id and shared secret are sent to the Web server and verified. User personal information is stored and managed in a form of profile card. Personal information submission to a Web site is performed by choosing a profile card. Submitted profile card and site card are linked. And this link makes it possible to synchronize updated personal information.