NE, the Nice Editor
An editor with a small footprint, featuring extended regular expression search and replace a la emacs and vi and editing of binary files.

Scintilla and SciTE
Download, screenshots and documentation of a free source code editing component for Win32 and GTK and an editor based on this component.

NEdit
GUI-style plain-text editor for X-Windows systems. Features include syntax highlighting and C-style macro language.

GNU Nano
Clone of the Pico text editor with some enhancements. Available for Linux and DOS.

Nedit Macros
A large collection of macros for use with the NEdit text editor.

ZED
Small editor with features for programmers.

J
A multifile, multiwindow customizable editor featuring syntax highlighting and enhancements for Java, C, C++, XML, HTML, JavaScript, Lisp, and Perl, with FTP and HTTP support written in Java.

Zile is Lossy Emacs
An Emacs clone useful for small footprint installations (like on floppy disk) or quick editing sessions. Available are a description of the features, information about how to get Zile, links to the documentation and screenshots.

SETEDIT
Text mode editor to supersede Borlands BC++ editor with a number of enhancements. Available for DOS and Linux.

QE Personal Editor
A PE2-like editor program for Unix.

Jed modes and scripts
Some scripts for customising and enhancing the JED editor using the SLang scripting capabilities.

Ed!'s home on the web
Ed! is 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.

BVI - Binary Visual editor
The bvi editor is a display-oriented editor for binary files, based on the vi text editor.

GNU TeXmacs
Editor for extensible, structured and WYSIWYG technical documents, which was both inspired by TeX and GNU Emacs. The site provides documentation, source and binary packages, a feedback section and additional links.

Anyedit
A development environment and Editor with a wide range of functionalities. Written entirely in C++.

Bluefish
A programmer's HTML editor written using GTK, designed to save the experienced webmaster some keystrokes. (C) [GNU/Linux, Unix]

Eddi
Tcl and tix based editor.

Freddy
An ascii text editor, primarily for programmers.

FTE Text Editor
A folding text editor for programmers.

gEdit
Lightweight but powerful text editor of the GNOME project.

Gnotepad+
An HTML/text editor using GTK+ and/or GNOME.

HexEdit
A Macintosh hexadecimal file editor that handles both data and resource forks.

jVi
jVi is a small subset of vim which is pluggable into JBuilder.

Katy
A text editor for KDE inspired by the popular Editor UltraEdit.

LDE - The Linux Disk Editor
Disk editor for Linux, originally written to help recover deleted files. It has a simple ncurses interface that resembles an old version of Norton Disk Edit for DOS.

Peacock
HTML Editor for GTK+/GNOME. It supports most of basic HTML. It features session management and preview using the GtkHTML widget.

poEdit
A cross-platform gettext catalogs (.po files) editor. It aims to provide more convenient approach to editing catalogs than launching vi and editing the file by hand.

Programmers Notepad
Windows programming editor with an integrated Hex viewer/editor.

Quanta Plus
An HTML editor and a web development for the K Desktop Environment.

REd0
A text editor written in TCL/Tk, meant to be platform-independend while still using the host systems available features.

Shed
Easy to use hex editor written for Unix/Linux using ncurses, with a friendly pico-style interface.

Tinn
A free text editor that trys to address some of Notepad's limitations without getting too big. It is written in Delphi 5 using the TSynEdit components.

Tkoutline
A cross-platform outline editor written in Tcl/Tk.

Vigor
Has all the features of traditional Unix vi, plus the friendly and helpful Vigor paperclip assistant.

Vim online
Resources, tips and news for the Vim community.

NEdit Support Page
Package to port NEdit on Windows and a package of NEdit macros to edit LaTeX files.

The Hessling Editor (THE)
Editor based on the VM/CMS editor XEDIT, using REXX as its macro language. Available for UNIX (including Linux) as text and X11 variants, OS/2, Windows, BeOS, QNX and Amiga.

Xcoral
A text editor for X-window (UNIX only) , with a built-in C/C++/Java code browser and a C interpreter. Beside a screenshots and a features sections there is a download area and a page with instructions to build from the source.

AEditor
A project aimed at developing an editor for Extreme Programming with a core in C++ and Ruby used for glue. Information about the mission, the status of the project and a possibility to download the current version.

Webniac
A multilingual open source webpage editor published under GNU's GPL.

WinMacro
Macro recorder and player (C++) [Windows].

The JED Editor Page
Text editor for Unix, VMS, MSDOS, OS/2, BeOS, QNX, and Win9X/NT platforms. A macro language and modes for different editing tasks are available.

Cssed
CSS editor featuring auto completion, syntax highlighting and syntax validation. (C, C++) [Linux]

Code Browser
A folding text editor that allows to structure source code using folders. [Win32/Linux]

Helene
A webbased syntax highlighting text editor (Javascript) [OS Independent].