A community-driven Emacs distribution
Tools for developing qooxdoo Web apps
Atom package - Activate POWER MODE to write your code in style
Coding WebIDE Community Edition
Collaborative Editing for Vim
A minimalistic open-source code editor written in pure Tcl/Tk
Notepad++ Plugin Manager
A multi-language code editor with syntax highlighting and templates.
A C Compiler/Editor for Retro 6809 Machines (Colour Computer/Dragon)
Vim script for text filtering and alignment
An open source gui frontend application for GNU Octave
Browser based code editor, allowing you to code from anywhere
Distraction-free writing in Vim
A free and easy to use batch code editor.
Perform all your vim insert mode completions with Tab
Eddy is a small and easy Edify code editor.
Advanced HTML Code Editor for Tinymce4
Mini Java IDE and Swing builder
A free text/code editor built in C#.