LinkLib: HTML: Validators

I use HTML-Kit's (www.chami.com) which has built-in HTML Tidy plus XML validation to check my pages. TopStyle Lite (see below)is a good free tool for writing and checking CSS. Xenu Link Sleuth is my link checker.

There are a lot of for-pay tools that check HTML and CSS, including most HTML editors, but there are also a number of free tools or websites.

HTML Tidy
Description: Useful HTML tidy program with lots of options. This is now built into a number of other products (eg, HTML-Kit, ...), so there's little need to run it separately.
URL: tidy.sourceforge.net
License: free, included with many products.
TopStyle CSS Editor
Description: A great CSS editor available in Pro and Lite versions. I'm using the Lite version and like it. I wouldn't hesitate to get the Pro version if I did more CSS.
URL: www.bradsoft.com
License: free lite version or $50 pro.
CSE HTML Validator
Description: The free version doesn't seem worth downloading because of few features, and the pro version seems to expensive, but it looks good.
URL: www.htmlvalidator.com
License: Free lite version or $129 pro. Last time I looked they had a sale, bundeled with TopStyle.

Online Validators

www.htmlhelp.com
Description: Free online validation for html and css. Will check your URL, download file from local computer, or can paste into a web page. Very nice. URL: www.htmlhelp.com and follow Validation links.
W3C online validator
Description: Free HTML/CSS validation of either URL or local file.
URL: validator.w3.org
More validators

Link Validators

Button to validate your pages

Valid XHTML 1.0!