An add-on hand-powered swinging mechanism for a porch swing or the like including an extension bar securable to a fixed surface adjacent the existing porch swing at one end thereof and having a pulley connection mechanism at a second end thereof; a pulley assembly, detachably mountable to an end of the extension bar, including an extension bar connecting mechanism and a pulley wheel rotatably mounted within a pulley bracket; a cable assembly including a handle member, a cable guide having a mechanism for securing the cable guide to the back of the existing porch swing, and a cable having a first end secured to the handle member, a central section positionable through the cable guide mechanism and a second end split into two rope members, each rope member including a rope member attaching mechanism for attaching each rope mechanism to the back of the existing porch swing. In a preferred embodiment the swing mechanism further includes a cable length adjustment mechanism to allow the user to adjust the length of the cable member and thereby adjust the height of the handle member to a desired level.
