FBIde is opensource IDE for FreeBasic compiler. Coded in C++ using wxWidgets library to be as portable as possible.
Colorer provides source text syntax highlighting services. It colorizes source codes in editor systems (more than 200 syntaxes). Uses powerful HRC format(XML, RE, context free grammas), allowing to support any language. Available as Eclipse plugin.
EclipseNSIS is a plugin for the Eclipse platform which enables editing, compiling and testing Nullsoft Installer (NSIS) scripts. The InstallOptions Editor plugin is for editing of InstallOptions files. (Requires Eclipse GEF http://www.eclipse.org/gef)
Monkey Studio is a cross platform IDE wich primary goal is to support all kind of Qt relating programming. This place is now a mirror, the new official downloads place is http://code.google.com/p/monkeystudio/
Octave Workshop is an integrated development environment for the GNU Octave programming language.
A cross-platform wxWindows class for running Ghostscript and manipulating the image it produces, plus an IDE/debugger for developing programs written in PostScript. For a PostScript debugger, there is now also an Eclipse plug-in - see http://thomas-fritsch.github.io/psdt/
Eclim is a set of eclipse and vim plugins to integrate the two projects.
Fireball FX is project that aim to create the best controls and libraries for developer, the project already contains some control, CodeEditorControl, Collections,Outlook Navigation bar and etc.. New Releases and source now at http://www.codeplex.com
C-smile OOL is a scripting language with C++-like grammar. It has compiler, VM running bytecodes and C++ extendible runtime. Intended to run in standlone and embedded mode.
Simple and Powerful Latex Editor
GClisp is a gtk+-2.0 front-end to Common Lisp (clisp). It provides an IDE with both a text editor and a running lisp repl.
Nice easy to use notepad software. Faster, more efficient, XP Compliant, and much more updates and new features to be added along the way. Plans are also to add more support for more file types in the future and also to make it smaller and install free.
Enabling intellisense(also called CodeInsight or AutoCompletion) for Vim Editor. Intellisense is supported for many languages and can be built for any language of your choice.
A code editor for the D programming language
Negerns is a code editor for the D programming language. It aims to be a cross-platform Integrated Development Environment providing advance editing and software development features.
A complete cleanup (for readability and ease of coding) and doccumentation of the original SMAUG 1.4a codebase, SLAM-GTP is also a minor re-write, bringing new features to the codebase, while also fixing and/or adding functionality to existing ones.
ABK Code Beautifier indents and comments the Code of C/C++ currently. The code to be processed must be error free for accurate output.
Alt-IDE is a Lua powered scriptable IDE. It provides the possibility to add support for any compiler! For the latest news and versions please visit the alt-ide website at www.alt-ide.net as updates on SF.net are sparse!
Basic Stamp II Sending and Parsing Utility, As far as I know at the time of this posting, 3-3-2003 this is the only single application for linux that allows the user to complile and program the Basic Stamp II module in one command: i.e. Linstamp 0 myfile
A linux console-based text editor integrated with g++. Has syntax highlighting, code completion, a script mode, auto-indenting and bracket matching.
"Creator of Turbo Pascal Code" is a cool project allowing to create normal length programs in Turbo Pascal knowing only the basics of TP. It has a set of creators (for example: procedure creator using database of TP procedures). It is only in Polish!
Dao Studio is an integrated developing environment for the Dao programming language. It includes a source code editor and command line console with syntax highlighting, and supports interactive debugging mode.
A powerful and flexible lightweight editing component.Support huge file,syntax highlighting,line folding,unlimited undo/redo,various character set and Unicode encoding,etc. It provides high speed and efficient memory usage.
QtBASIC = Free full featured modern BASIC language for Linux Its main goal is to develop Qt applications with well known BASIC syntax in a modern fashion. It comes with Java-like object orientation and backward support for VB6 (100% syntax compatible)!
GNAHB Tools is a set of tools for building and deploying code on the GNAHB board created at the Illinois Institute of Technology. It will be backwards compatible to support code written for the MIT Handyboard.