W3C Validator on Mac OS X

For the Mac Web community (and certainly Unix too) ;)

"""
Building a website is a complicated process, and testing your finished 
product on every possible browser can be even more daunting. However, 
because modern browsers such as Safari, Mozilla, and Internet Explorer 
6 are compliant with the World Wide Web Consortium's (W3C) standards, 
testing your pages with the W3C Validation Tool is a great way to 
ensure that your pages work with modern browsers. The W3C Validator 
provides a line-by-line level of feedback, such as error information 
with references to the standards, on any URL you submit or HTML file 
you upload.
"""

To read http://developer.apple.com/internet/opensource/validator.html

-- 
Karl Dubost - http://www.w3.org/People/karl/
W3C Conformance Manager
*** Be Strict To Be Cool ***