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.
Japan
AutoHotkeyand
United States