Aquamacs 2.2

This program is an Aqua-native build of the powerful Emacs text editor. Aquamacs will feel and behave mostly like an Aqua program while still being a real GNU Emacs with all the ergonomy and extensibility you've come to expect from this world-class editor.

Aquamacs support the standard Mac user interface that you've come to love. For instance, in addition to traditional Emacs shortcuts like C-x C-f (open a new file), Aquamacs understands Command-O. The program behaves like a modern application on Mac when it comes to selecting, copying, pasting texts within Aquamacs or in between applications.