Karabiner, previously called KeyRemap4MacBook, is a very powerful keyboard remapper for Mac OS X. In addition to simple key remapping, it has special remapping modes like Emacs-mode, SandS-mode (Space and Shift).

TouchCursor is described as 'Lets you use the home keys as cursor keys – in all Windows programs – keeping your fingers in the best position for fast typing. Its free and open-source' and is a Key Mapping tool in the os & utilities category. There are four alternatives to TouchCursor for Mac and Windows. The best TouchCursor alternative is Karabiner Elements, which is both free and Open Source. Other great apps like TouchCursor are Hyperkey, Stick Shift and Physcape.
Karabiner, previously called KeyRemap4MacBook, is a very powerful keyboard remapper for Mac OS X. In addition to simple key remapping, it has special remapping modes like Emacs-mode, SandS-mode (Space and Shift).

Use an additional modifier key for all your keyboard shortcuts with this straightforward app. Utilize an unused key by converting the caps lock or any modifier key to the hyper key, which combines all four modifiers. The hyper key can be used in any app with keyboard shortcuts.

Stick Shift saves you time by removing repetitive changes to hand position when programming.

