Note: These are only the ones that I recommend. Not all validation software is made equal.

[Progress: I am still compiling this list from my scribbles, bookmarks, post-it notes, and random note files. It is a work in progress. – Last updated on April 9, 2006.]

(X)HTML and XML Validators

CSS Validators

RSS/ATOM Feed Validator

Accessibility Compliance Checks

  • Bobby – Watchfire WebXACT

    One of the best online accessibility compliance checks in existance. Can check 508 compliance, and all levels (A, AA, AAA) of the WCAG guidelines.

  • Cynthia Says

    A favorite of mine for the same sort of quality checks you get from Bobby, with less interface clutter.

  • WAVE

    Powered by the folks over at the marvelous WebAIM, this is a very good accessibility checker.

  • TAW

    TAW (Web Accessibility Test – backwards) is another online check using the WCAG guidelines.

  • HiSoftware

    Section 508 and WCAG 1.0 Check.

  • Site Valet

    Section 508 and WCAG 1.0 Check.

  • BITV

    Section 508 and WCAG 2.0 Check.

Online Shopping

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