TeX to MathML translator: translates from Plain TeX and LaTeX into HTML including the equations in the form of embedded MathML. Windows/Intel (purchase) and Linux (free) platforms. Interactive demo.

TEX to HTML translator. Download C source or binaries for most operating systems, free for non-commercial use.

A semantically clean, GNU licensed, XML e-publishing tool for LaTeX authored scientific articles. Download sources or the windows binary, mailing list and general information.

An XML vocabulary for TeX. The processor transforms TeXML markup into the TeX markup, escaping special and out-of-encoding characters. Intended audience is developers who automatically generate TeX files.

A Perl script to convert a properly formatted HTML file into a properly formatted LaTeX file.

Conversion between FrameMaker and LaTeX (both ways) and BibTeX to FrameMaker. Source code in C.

Converts well-formed .csv files to a LaTex document. It is written in C and can be freely customized.

Excellent resource written and maintained by Wilfried Hennings.