W3C Markup Validator for HTML5

The W3C Markup Validator checks the markup validity of Web documents in HTML, XHTML, SMIL, MathML, etc. This validator is part of Unicorn, W3C's unified validator service.

To use this validator for HTML5, you need to use More Options and select Document Type as HTML5 shown below.

karthikeya Boyini
karthikeya Boyini

I love programming (: That's all I know