tidy-html5: tidy-html5 (correct and clean up HTML and XML documents) tidy-html5: tidy-html5: Tidy is a console application for Mac OS X, Linux, Windows, tidy-html5: UNIX, and more. It corrects and cleans up HTML and XML tidy-html5: documents by fixing markup errors and upgrading legacy code to tidy-html5: modern standards. tidy-html5: tidy-html5: HTML Tidy was created by the W3C’s own Dave Raggett back in tidy-html5: the dawn of the Internet age. His original Internet page is tidy-html5: still available and gives a sense of the early history: Clean tidy-html5: up your Web pages with HTML TIDY.