Rapid applications development tool and libraries for FPC
Modernized fork of NEdit, with unicode support and AA text rendering
Jexer - Java Text User Interface Library
TclTk-IDE for development and testing tcltk-apps
Customizable multiplatform development environment.
an OSGi-based Swing Application Framework
Kile is a feature-rich LaTeX editor
uIDE (Micro IDE) is a free, open-source IDE for GPUtils
A powerful editor and graphical debugger for code written in Scilab
Kisekae UltraKiss is a full featured integrated development environmen
RAD Tool and IDE for PHP, JSP, ASP, C++ and Java Swing
Symja - Java computer algebra language & symbolic math library
OpenLens Binary Build Repository
Static site IDE is a Static Site Generators aka Static Site Editor
A syntax highlighting, code folding text component written in Swing
Open Source C & C++ IDE for Windows
Eclipse plugin for VCS ClearCase
A simple Bash IDE / Debugger
EditBox is the Eclipse plugin for source code background highlighting.