WDG HTML Validator

WDG HTML Validator is a CGI script which checks web pages against a validating SGML parser for conformance to official HTML standards.

You can:

validate an URL
validate files on your computer
enter HTML code directly
validate multiple URLs

Validate an URL

Enter the URL of an HTML document to validate:

Validate files on your computer

Select an HTML document from your computer to be uploaded for validation:

Charset:
Include warnings Show input

Enter HTML code directly

Enter the HTML to be validated:

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <title></title> </head> <body> </body> </html>
Charset:
Include warnings Show input

Validate multiple URLs

Enter the URLs of HTML documents to be validated, one by line: