A free IDE for C#, VB.NET, & Boo projects on Microsoft's .NET platform
SharpDevelop is the open-source IDE for the .NET platform. Write applications in languages including C#, VB.NET, F#, IronPython and IronRuby, as well as target rich and reach: Windows Forms or WPF, as well as ASP.NET MVC and WCF. It starts from USB drives, supports read-only projects, comes with integrated unit and performance testing tools, Git, NuGet and a lot more features that make you productive as a developer.
Geany is a small and lightweight integrated development environment. Basic features are syntax highlighting, code completion, code folding, call tips, many supported filetypes.
Rapid applications development tool and libraries for FPC
The Lazarus IDE is a stable and feature rich visual programming environment for the FreePascal Compiler. It supports the creation of self-standing graphical and console applications and runs on Linux, FreeBSD, MacOSX and Windows.
A free, portable, fast and simple C/C++ IDE
A new and improved fork of Bloodshed Dev-C++
Bluefish is a powerful editor for experienced web designers and programmers. Bluefish supports many programming and markup languages, but it focuses on editing dynamic and interactive websites.
A syntax highlighting, code folding text component written in Swing
RSyntaxTextArea is a syntax highlighting, code folding text component written in Swing. NOTE: For quite awhile now, RSTA's source has been hosted on GitHub, but releases were mirrored here on SourceForge. As of late 2015, all release artifacts are also hosted solely on GitHub. This SourceForge site is simply here to forward folks to our GitHub home: http://github.com/bobbylight/RSyntaxTextArea Artifacts are also available in Maven, e.g. com.fifesoft:rsyntaxtextarea:2.x.x
Dev-PHP is a well-featured IDE for PHP. Fast and powerful, it is easy to use and has a lot of cool features : class browser, scripts preview, integration with PHP parsers, PHP-GTK library, and Xdebug of course. Dev-PHP-usb slips even into your pocket.
A RAD GUI Building IDE for wxPython.
C++ IDE easy and complete.
Falcon C++ is a IDE that was developed to turn development of C++ applications easily.
A powerful editor and graphical debugger for code written in Scilab
Scipad is a powerful editor and graphical debugger for programs written in the Scilab language. It is a mature and highly configurable editor, almost entirely written in Tcl/Tk. Scipad is a free software running on Linux and Windows. Licence is GPL V2.
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!
An Integrated Development Environment for the programming language BlitzMax including a program editor, debugger interface and help system.
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/
Add-on based IDE adaptable to any developement platform
UniversalIDE is an open source development environment studied to be compatible with any programming language thanks to its add-on based structure. Anyone who knows the .NET Framework can develop add-ons to support a programming language, defining syntax highlighting rules and interfacing the IDE with compilers or interpreters. It is written in Visual Basic .NET, so it requires the .NET Framework to run. The program's GUI is multi-language (actually English and Italian are officially supported, but translating to another language is as easy as editing an XML file). More information in the wiki https://sourceforge.net/p/universalide/wiki/ and in the website http://universalide.sf.net This project uses SharpZipLib: http://icsharpcode.github.io/SharpZipLib/ Some icons are from this creative commons - licensed icon set: http://p.yusukekamiyamane.com/ .
Development of the project has been suspended
Keypad+ - is a text editor with syntax support for various programming languages. Written in PHP, for the operating system Windows.
Objective Caml (OCaml) Elipse Plug-In
ASED is a Tcl/Tk Editor written in pure Tcl/Tk using the BWidget Toolkit. Features included: multifile editing, syntax-highlighting, command-expansion, undo/redo, autoindent, find/replace, file-browser, help-system
HanDLight is a lightweight, C# writed, Mozilla Gecko based web authoring tool. It's include an FTP client.
Trac is an enhanced wiki and issue tracking system for software development projects. CruiseControl is a framework for a continuous build process This VMware Virtual Appliance integrates both software to make a complete SCM & Project Managenent Tool.
PICCo is a freeware IDE for Pic programming. This application include a project manager and some integrated tools for PIC programming.This application supports errors managment and generation of binaries files.
An open source IDE for AROS Research Operating System
SE|PY is an ActionScript editor written in python, wxPython and using scintilla for text highlight, code collapsing. some features: snippets panel, functions panel and much more. Contain also Flush
SCUMM Developer is a project in which we will try and make an IDE which will run a set of tools to manipulate or create your own SCUMM Game. We plan on supporting all versions and possibly even GRIME.
Gorilla Grodd is a graphical editor to manage web animations such as SVG files and SWF. It makes you able to export data to different file formats, and it's fully extensible thought an easy to use plugin system.
SphereScripter is a simple tool which allow you to make Sphereserver Scripts and Gumps in easy way. Features: code colour, check syntax, gump creator, display Art/Mul pictures, search Art item/NPC/gump and more...