Extra tools for OpenOffice under weak copyleft or other licenses
The free and Open Source productivity suite
A free C, C++ and Fortran IDE
Rapid applications development tool and libraries for FPC
One hundred command line tools in a small and portable binary.
An editor for structured documents
XML text markup for ancient documents
A text editor that works like you'd expect
Open Source C & C++ IDE for Windows
Launch an external diff tool like WinMerge in Eclipse
Eclipse plugin for VCS ClearCase
a collection of indexing and search tools for corpus linguists
A modern, lightweight yet powerful text editor
CodeLite: an open source, cross platform C/C++/PHP and JavaScript IDE
PDF Library for Developers
Tools for developing qooxdoo Web apps
HTML/CSS/JS and Markdown Playground For Web Designers and Developers