This is a port of the GNU Java2Html project. The GNU project's implementation is in C++, so this is the Java version. Unlike most of this site, it is covered by the GPL licence and thus might be too restrictive for your application.
All code on this page is covered by the Gnu Public Licence (GPL).
Add the jar to your classpath and invoke via java Java2Html <src-file> <destination-file>
The GNU project may be found at www.gnu.org/software/java2html and the latest version at www.gnu.org/software/src-highlite.