Abstract: A built-in retractable hanger for mobile devices is provided. In an implementation, a cord is extendible and retractable within a hinge of a mobile device. A biasing member, such as one or more springs, provides tension on the cord for automatic retraction. The cord can be pulled into a hanger loop for suspending the mobile device for hands-free use in an airplane, train, or car. The retractable hanger can also be included in a protective case for a mobile device. A front cover of the mobile device or protective case can flip around to become a folding stand for selecting a viewing angle of the mobile device when suspended for hands-free use. When the mobile device is taken down from a hanging point, the retractable hanger reconceals itself in the mobile device or protective case.