SharpKeys, Karabiner Elements, Key Remapper, Microsoft keyboard layout creator, Ukelele, keyboardlayouteditor, Simple Disable Key, KeyExtender, MapKeyboard, Key Manager, X Keyboard Extension (XKB), Seil, HotKeyBind, xmodmap, KbdEdit, DoubleCommand, KeyBindingsEditor, Key Remapper 4dots, Stick Shift, Physcape are some alternatives to KeyTweak.