TTH translates TeX source that uses the Plain macro package, or
LaTeX, into a near equivalent in HTML.  It is extremely fast and
completely portable. It produces web documents that are more compact
and managable, and faster-viewing, than those from other converters,
because it really translates the equations, instead of converting them
into images.

WWW: http://hutchinson.belmont.ma.us/tth/tth.html