hy­per­la­tex – A re­stricted LaTeX sys­tem that also pro­duces HTML

HyperLaTeX de­fines a form of LaTeX that may be pro­cessed in the or­di­nary way with a la­tex com­mand, for printed out­put. How­ever, HyperLaTeX doc­u­ments may also be pro­cessed by the pro­gram hy­per­la­tex to pro­duce good-qual­ity HTML.
HyperLaTeX is not a LaTeX to HTML con­verter (see, for ex­am­ple, tth or la­tex2html for that). Rather, HyperLaTeX pro­vides an en­vi­ron­ment where the au­thor can pre­pare a doc­u­ment that may be con­verted to ei­ther print or HTML out­put.