Free, open-source text editor
The Superior Lisp Interaction Mode for Emacs
Emacs support for the Clojure(Script) programming language
jEdit is a programmer's text editor written in Java.
lightweight portable vi compatible editor
Tinn-R Editor - GUI for R Language and Environment
A fancy and fast mode-line inspired by minimalism design
MadEdit-Mod is a cross platform Text/Hex editor based on MadEdit
PiNote is a free source code editor that supports several languages.
STF automatically generates documentation
Configurable Editor in Python
A simple tool for typing characters in different writing systems.
Help manage acronyms in a MS Word document
VTL (Velocity Template Language) edit support for the NetBeans IDE.
Text Editor for Programmers
A general-purpose macro-processor, particularly useful for HTML
Command & Macro Robot
XML editor for handle multiple XML files with XPath
Notepad++ project is moving to GitHub:
Binary (hexadecimal) editor for Windows