HEATKEYS

W3C

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

Tools you can use, by Jonathan Hedley

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

HTML XHTML CSS JavaScript XML XSL ASP SQL ADO VBScript Tutorials References Examples

Free online HTML validator. Instead of one page at a time, enter a Starting URL and our robot finds and validates all pages in your website

Free computer help and support. Answering all your computer related questions with complete information on all hardware and software.

SitePoint.com - With a vast variety of web design tutorials and articles coupled with a vibrant and well informed community, SitePoint the natural place to go to grow your online business

Code Beautify hepls to edit, minify,beautify,export web code like CSS,HTML,JSON,XML,RSS,XMLtoJSON,JSONtoXML,CSVtoJSON,CSVtoXML,XMLtoCSV,JSONtoCSV convter, viewer,beautify and minifier,editor and Create robots.txt,sitemap

JavaScript Lint is a code checker that finds common mistakes in scripts.

1stwebdesigner is a design blog dedicated to bloggers, freelancers, web-developers and designers. Topics focus on web design and inspirational articles.