HT is a file editor/viewer/analyzer for executables. The goal is to combine the low-level functionality of a debugger and the usability of IDEs. We plan to implement all (hex-)editing features and support of the most important file formats.
HT is distributed under the terms of the GPL.

GNU TeXmacs :: is a free wysiwyw (what you see is what you want) editing platform with special features for scientists. The software aims to provide a unified and user friendly framework for editing structured documents with different types of content (text, graphics, mathematics, interactive content, etc.). The rendering engine uses high-quality typesetting algorithms so as to produce professionally looking documents, which can either be printed out or presented from a laptop.

The software includes a text editor with support for mathematical formulas, a small technical picture editor and a tool for making presentations from a laptop. Moreover, TeXmacs can be used as an interface for many external systems for computer algebra, numerical analysis, statistics, etc. New presentation styles can be written by the user and new features can be added to the editor using the Scheme extension language. A native spreadsheet and tools for collaborative authoring are planned for later.

Notepad2, a fast and light-weight Notepad-like text editor with syntax highlighting. This program can be run out of the box without installation, and does not touch your system's registry.

UniRed is a unicode plain text editor.
It supports many charsets, in particular:
    * 16-bit Unicode (little endian and big endian);
    * UTF-8;
    * Windows system charset (ANSI);
    * DOS system charset (OEM);
    * Latin-1, Latin-2, Latin-3 etc;
    * Cyrillic charsets: cp866, windows-1251, koi8-r;
    * etc.
Besides it allows to use HTML-style presentation of Unicode symbols, like ř; also it allows using of «surrogates», i.e. instead of Unicode symbol in the file is a combination of letters (for example, in the file is ĉ, and you will see on the screen Unicode symbol ĉ).
Another important feature of UniRed is its syntax highlighting. It can emphasize syntax elements by colors and/or text styles. UniRed supports many program languages, including HTML, C/C++, Delphi, Java and others. (This feature is implemented thanks to adaptation of the external module Colorer by Igor Ruskih, originally destinated for popular file manager FAR).
And another important feature of UniRed is the ability to search and replace pieces of text by regular expressions.
And finally: UniRed can co-operate with the spell-checker ISpell, allowing to check spelling in any language, it can call external compilers, it can browse structure of program etc.

Notepad2 is a fast and light-weight Notepad-like text editor with syntax highlighting. This program can be run out of the box without installation, and does not touch your system's registry.

DrPython is a highly customizable, extensible editor/environment for developing programs written in the Python programming Language.

With Multi Clipboard you have access to nine clipboard texts (slots), which you can select either via mouseclick when the program window is active, or via Hotkey "Ctrl + NUMPAD 1.. 9", even if the program is inactive or minimized to the system tray. This copies the selected slot to the Windows clipboard, from which you can paste it into your active application (for instance with Ctrl + V). The hotkey "Ctrl + NUMPAD 0" hides or shows the program window, depending on the previous state. If nine slots are not enough and you need more, you can change to another of three available files.

4 Stars at ZDNet.com

Weft QDA is an easy-to-use tool to assist in the analysis of textual data such as interview transcripts, written texts and fieldnotes. It includes a number of fairly standard CAQDAS features.

Yudit is a free (Y)unicode text editor.