{Tidyp is a program (and a library) that can validate your HTML,} as well as modify it to be cleaner and more standard. Tidyp does not validate HTML5. The Perl module HTML::Tidy is based on the libtidyp library. Tidyp is a fork of the original tidy project hosted at http://tidy.sourceforge.net/.

WWW: http://tidyp.com/
