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W3C

Online tools for developers, including formatters (JSON, XML, HTML, SQL, etc.), minifiers (JavaScript, CSS), validators, compactors and many more!

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Web Design and HTML are all about creating a great Web site. Use Web development and Web site design to build Web sites that customers return to over and over again. On this site learn the basics of Web design, HTML, XML, and Web development.

CSE HTML Validator is a powerful and easy to use offline HTML, XHTML, CSS, JavaScript, and PHP syntax checker, HTML validator, XHTML validator, accessibility checker, and link checker for Microsoft Windows. A free edition is also available.

A fully comprehensive listing of freebies on the internet; including free homepages, free E-mail providers, free promotional tools, and much more! Each service is individually rated and reviewed.

Web SEO Analytics Offers Professional SEO Tools, a SEM Toolbox & Free SEO Analysis. Learn about Search Engine Optimization, SEO Tips & news on our Online Marketing Blog.

HTMLHelp.com is maintained by the Web Design Group to provide Web authoring reference material, tips, and answers to frequently asked questions.

A free HTML syntax checker for Microsoft Windows from the developers of CSE HTML Validator Professional.

Professional web designer specializing in search engine friendly websites, SEO analysis, website redesigns, website evaluations with hand coded HTML by Lori

html code checking, search engine optimization and web site maintenance - Webmaster tools help promote site, validate html tags, find broken links, and check spelling. Web site promotion tools.

This is a free, online HTML validator. Instead of validating one document at a time, enter a Starting URL and our robot does the work