CGI to access multiple zip archives. Good for browsing the javadoc Java API docs. It needs a webserver, bash and unzip. There is an ability to generate interactive file listings on-the-fly.
Tools for extracting and transforming XML-like mark-up, embedded in source code comments, into proper external entities or well-formed XML files. Can be used for JavaDoc-like "literate programming", or embedding other build-related or CM metadata.