Lightweight and easy to use cross-platform C++ IDE
ZinjaI is a lightweight Cross-platform IDE for programming with C/C++, initially aimed to be used in classroom for learning C++, but powerful enough to manage complex projects as ZinjaI itself.
Dev-C++ with wxWidgets designer
wxDev-C++ is an opensource wxWidgets Dialog designer that mimics the Delphi/Borland C++ Builder designer.
Code::Blocks is an open-source cross-platform IDE (Integrated Development Environment) for C/C++. Designed with flexibility in mind, most of its features are provided by external modules (plugins) making it easily extendable and configurable.
A RAD GUI Building IDE for wxPython.
Eclipse Verilog editor is a plugin for the Eclipse IDE. It provides Verilog(IEEE-1364) and VHDL language specific code viewer, contents outline, code assist etc. It helps coding and debugging in hardware development based on Verilog or VHDL.
This project provides binary packages for the Ada front end of GNU compiler collection. The project also provides various Ada libraries like the Ada Web Server and Ada aware Integrated Development Environments (gps and vim).
EJE is a simple Java editor, perfect to learn Java, without learning a complex development tool. EJE is multi-platform (written in Java), light- weight, user-friendly and have several useful basic features. A good help to start with Java!
Second Life script editor.
Alphons van der Heijden, author of LSLEditor, the great off-line editor and debugging tool for scripting in Second Life, has donated his opus magnum to the free and open source community where it can grow and keep pace with the SL platform!
SPE is a python IDE with auto indentation&completion,call tips,syntax coloring&highlighting,uml viewer,class explorer,source index,todo list,pycrust shell,file browsers,drag&drop,Blender support.Spe ships with wxGlade,PyChecker and Kiki.
Collection of Emacs Development Environment Tools
A very easy to use GUI C++ framework for Windows and *NIX systems. Supports WIN32 API on Windows platforms, and Athena and Motif X widgets on *NIX systems. First developed in 1995, is still in active development. Currently working on Version 2.0.
REM is a NetBeans module for ZK application development. It can be used to create ZK web Applications, ZUL and ZScripi documents. It supports ZUL syntax highlighting, auto indent, code folding, code hyperlink navigation and code completion. It supports palette for some components.
Visual Tcl is a freely-available, high-quality application development environment for UNIX, Windows, Macintosh and AS400 platforms. Visual Tcl is written entirely in Tcl/Tk and generates pure Tcl/Tk code.
Eclipse based editor for phpBB MOD files
JSource is a small Java IDE written in Java using entirely Swing components. It has a light but powerful editor that allows creating, editing, compiling, and running Java files. It also supports syntax highlighting for other programming languages.
JUDO is a Java IDE for children and beginning programmers. JUDO is designed to be an educational tool to teach programming concepts and to spark excitement and interest in programming.
SQLite Designer tools to create and manage easy db for developers. also support Linq to SQLite (C#) code generator and SQL Parser
Kazam is a visual editor and project manager for interactive fiction game creation with Inform, one of the major development tools for this type of games. Kazam is developed with the wxWindows cross-platform GUI package.
(XSLT transformer/editor) A text editor that allows the loading and editing of an XML document and an XSLT document at the same time. It also can apply the XSLT to the XML and display the output for further editing/saving. Plugable XML and XSLT parsers
An Eclipse plugin for editing CORBA IDL files
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/
XPontus , a free java based, Open Source XML Editor
Camelia is an IDE for OCaml designed with students and new users in mind. It sports syntax highlighting, tool-tip type checking, clickable error explanations, an integrated debugger, and more.
xslide is an Emacs major mode for editing XSL stylesheets and running XSL processors.