Editors

A free open source text editor for the Linux platform. The source code is available for download. The site also provides some information on how to develop an editor in the Linux console environment using the ncurses library.

Acme is a textual user interface for programmers by Rob Pike for Plan 9, with ports to Unix-like and Windows systems. [Open Source]

Graphical RSS and ATOM feed editor. [GPL].

Official Free Software Foundation page for the extensible, customizable, self-documenting real-time display editor.

An interesting behind-the-scenes look at the design and creation of the Emacs 21 logo.

JEmacs is a re-implementation of Emacs, written in a mixture of Java, Scheme, and Emacs Lisp.

Official Emacs manual from the Free Software Foundation.