Two new features are already available with W3C Validator.JS – Bulgarian language version (still incomplete, but I will finish it in the next few days) available from a link in the footer and in the context menu, and option for adding validation link and image to W3C Validator.JS from other websites, so their visitors can validate the code via W3C Validator.JS.
The excellent set of 88 x 16 web badges is provided by http://www.validationicons.com/:
Visit this page to learn more about the validator, or go directly to its website and use it to validate your markup.
Visit http://acidmartin.wemakesites.net – the home of Acid.JS – The AJAX Tools and Widgets Library
I’ve just finished my latest AJAX project – W3C Validator.JS. It is a real (x)html markup validator, that uses the W3C API for head requests. Except my own work on that website, W3C Validator.JS also utilizes two excellent AJAX/JSON scripts created by Jacob Seidelin of Nihilogic and Simon Wilson’s JSON-HEAD.
You may also put a validation link to W3C Validator.JS directly from your website using the following URL:
<a href="http://validator.wemakesites.net/#http://www.yourwebsite.com" rel="validate" title="Validate my Markup via W3C Validator.JS">Valid Markup</a>
To illustrate this, click the following link to validate my WordPress blog (unfortunately its markup is invalid).
Have fun with W3C Validator.JS!