1)   JDOC2CHM 2.1
JDoc2CHM is a conversion tool which translates Java documentation to Microsoft Compiled HTML Help file. It will be able to compile almost any standard generated Javadoc documentations, including the Java API Documentation.

 2)   DocFlex/Javadoc 1.5.3
DocFlex/Javadoc is both a template-driven multi-format Javadoc Doclet and a rapid doclet development tool that allows easy creation of professional quality Java API documentation generated by Javadoc in various output formats.

 3)   DocFlex/Doclet 1.5.3
Template-driven Javadoc doclet that generates both framed and single-file HTML, the exceptional quality RTF with rendering of HTML tags embedded in Java comments (including images). Full support of new Java 5.0 language features. Doclet GUI.

 4)   CppDoc 2.3.1
CppDoc generates HTML documentation for your C++ classes, based on your source code and special comments embedded within it. It supports JavaDoc tags (@see, @return, etc.) and can produce JavaDoc-style output.

 5)   DelphiCodeToDoc v0.14b
DelphiCodeToDoc is a free documentation system for Delphi, released under the GNU General Public License