Tidy is a C library for cleaning up "bad" HTML. Don't use this tag for questions about keeping your code tidy.
Tidy is a library written in C for converting HTML that is syntactically incorrect to correct HTML or to XHTML. Especially useful when you are scraping web pages with curl and XML parsing functions because XML parsing functions don't accept bad HTML. Extensions for Tidy are available in PHP and Perl. The Tidy extension in PHP supports functions to covert bad HTML to XHTML with various options like dropping deprecated tags like font tag and hiding comments and dropping proprietary tags and dropping empty paragraphs and a lot more.
