KeyExtender Alternatives

KeyExtender is described as 'Keyboard remapping tool which not only allow you to customize keyboard keys, but also help to reduce duplication keyboard operation, and increase productivity on daily computing' and is a Key Mapping tool in the system & hardware category. There are more than 10 alternatives to KeyExtender for Windows, Mac, Linux, BSD and X11. The best KeyExtender alternative is Karabiner Elements, which is both free and Open Source. Other great apps like KeyExtender are SharpKeys, KeyTweak, Key Manager and Key Remapper.