Validators and Lints

htmlvalidator.com

Locates webpage coding errors, lists error number and page source.

425 visits Mar 13, 2026 Details

infohound.net

Cleans up coding errors, especially useful for deeply nested ones.

136 visits Apr 24, 2024 Details

algotech.dk

Removes clutter from Microsoft Word 2000-generated HTML. ASP source code available for purchase.

348 visits Sep 28, 2025 Details

totalvalidator.com

Validator for WAI, XHTML, and HTML. Also checks for broken links and spelling mistakes.

368 visits Aug 10, 2024 Details

squarefree.com

Javascript bookmarklets which check alt text, broken images, small screen readability, and HTML validity.

360 visits Jan 25, 2025 Details

ebthing.com

Offers validator for HTML, XHTML, and DTD-based XML languages.

148 visits Feb 15, 2026 Details

validome.org

Multilingual validator for HTML, XHTML, and XML.

55 visits Jan 13, 2025 Details

validator.w3.org

World Wide Web Consortium validator.

127 visits May 23, 2025 Details

alidator.com

Portal to several validators and URL analyzers.

19 visits Jul 24, 2024 Details