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Validators and Lints

Computers > Data Formats > Markup Languages > HTML > Tools > Validators and Lints

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	W3C HTML Validation Service - http://validator.w3.org/ World Wide Web Consortium validator.
	Web Page Backward Compatibility Viewer - http://www.delorie.com/web/wpbcv.html Uncheck tags to be unsupported and see how the page looks.
	WDG HTML Validator - HTML Help - http://htmlhelp.com/tools/validator/ Produces easy to read HTML error messages. Can validate one page or a batch of pages at one time.
	Validome Markup Validation Service - http://www.validome.org/ Multilingual validator for HTML, XHTML, and XML.
	Web Page Purifier - http://www.delorie.com/web/purify.html Check how a webpage looks with different HTML versions.

	HTML Tidy Online - http://infohound.net/tidy/ Cleans up coding errors, especially useful for deeply nested ones.
	Total Validator - http://www.totalvalidator.com/ Validator for WAI, XHTML, and HTML. Also checks for broken links and spelling mistakes.
	Validator-Lite - http://www.webthing.com/software/validator-lite/ Offers validator for HTML, XHTML, and DTD-based XML languages.
	HTML/XML Validator - http://validator.aborla.net/ Validates and repairs HTML, XHTML, and XML. Also includes accessibility checking.
	Validation Bookmarklets - http://www.squarefree.com/bookmarklets/validation.html Javascript bookmarklets which check alt text, broken images, small screen readability, and HTML validity.

	Microsoft Word 2000 HTML Mess Cleaner - http://www.algotech.dk/word-html-cleaner-input.htm Removes clutter from Microsoft Word 2000-generated HTML. ASP source code available for purchase.
	HTML and XHTML Syntax Checker - http://www.freehtmlvalidator.com/onlineval.php Locates webpage coding errors, lists error number and page source.
	Web Validators - http://validator.czweb.org/ Links to validators for XHTML, HTML, CSS, RSS, XML, and RDF documents.
	Web Mechanic - http://www.webmechanic.com.au/ Validator and lint eliminates redundant or conflicting tags and compresses image files. Pay service.
	XHTML CSS - http://xhtml-css.com/ Helps checking and suggesting corrections to web pages markup (HTML) and style (CSS) coding.

	Dr. Watson - http://watson.addy.com/ Checks HTML code, links, spelling, download time and link popularity.
	Pure PHP XHTML Validator - http://www.bermi.org/xhtml_validator PHP class for validating XHTML documents. Source code available under LGPL.
	HTML Code Cleanup - http://www.htmlcodecleanup.com/ Validator and hand cleanup by professionals.
	Alpine HTML Doctor - http://www.alpineinternet.com/.docs/pg/11133 Identifies common HTML code errors, corrects the code, and generates a repair file for cut and paste back into a document.
	Walidator - http://www.walidator.com/ Portal to several validators and URL analyzers.

HTML Tidy Download - http://chami.com/html-kit/tidy/
HTML Tidy plugin. Fixes HTML and XHTML, converts HTML to XHTML.

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