I wrote a Haskell library, [texmath](http://github.com/jgm/texmath http://github.com/jgm/texmath) that converts LaTeX to MathML; this is used in pandoc and giti

I wrote a Haskell library, [texmath](http://github.com/jgm/texmath http://github.com/jgm/texmath) that converts LaTeX to MathML; this is used in pandoc and gitit. The library comes with two executables, one a standalone command-line converter, another a CGI program. There's an interactive demo [here](http://johnmacfarlane.net/texmath http://johnmacfarlane.net/texmath). The library just handles standard LaTeX math + AMS extensions. It doesn't yet know how to parse macros.