a compact and aesthetically - pleasing self - closing door hinge comprises a gravity - assist feature and preferably a spring - assist feature , wherein the spring may be easily adjustable , replaceable , and even left out of the hinge . the preferred embodiment is reversible for easily changing from a right - opening to a left - opening door , and includes hinge lift - off capability , wherein the door and the blade connecting the door to the hinge body may be lifted up off the body of the hinge without any significant disassembly of the hinge . the spring is preferably placed around the gravity - assist cams of the hinge , rather than above or below the cams , which arrangement significantly reduces the overall height of the hinge with only slightly increased diameter of the hinge main body . the preferred hinge has no bolts or other fasteners visible or protruding out from the main housing of the hinge , and the preferred hinge has no exposed spring sleeve .