JavaHelp is an open source software, a full-featured, platform-independent, extensible help system that enables you to incorporate online help in applets, components, applications, operating systems, and devices. Authors can also use the JavaHelp software to deliver online documentation for the Web and corporate intranet.
Natural Docs is an open-source, extensible, multi-language documentation generator. You document your code in a natural syntax that reads like plain English. Natural Docs then scans your code and builds high-quality HTML documentation from it.
Eclox is a simple doxygen frontend plug-in for eclipse. It aims to provide a slim and sleek integration of the code documentation process into eclipse.
Eclox is a free software distributed under the term of the GNU General Public Licence (GPL).
a source code tag system that works the same way across diverse environments. You can locate a specified object in the source files and move there easily. It is useful for hacking a large project containing many subdirectories, many #ifdef and many main()