I came across this really useful application a few days ago that you can download and use on any Mac. Validator S.A.C. is a Mac application that is based on the W3C's (X)HTML Markup Validator so you can easily validate local pages, or even remote ones. I guess it's useful if you don't use Firefox - as there it's easier just to use the web developer toolbar, but I guess it's handy if you're somewhere without a net connection.
Link: Validator S.A.C









