Free HTML CSS resources from all around the web

Html Cleaner
Get rid of your dirty markup with the free online HTML Cleaner. Easy to compose, edit, format and minify the web code with this online tool. Convert Word, Excel to tidy HTML

CSS Lint
CSS Lint points out problems with your CSS code. It does basic syntax checking as well as applying a set of rules to the code that look for problematic patterns or signs of inefficiency.

JavaScript Obfuscator
Super tool for JavaScript code obfuscation.

JS Fiddle
Test your JavaScript, CSS, HTML or CoffeeScript online with JSFiddle code editor.

JS Beautifier
Beautify, unpack or deobfuscate JavaScript and HTML, make JSON/JSONP readable, etc.

Dabblet
An interactive CSS playground and code sharing tool. Dabblet saves to Github gists and offers many conveniences for CSS editing.

Thimble
Thimble is an online code editor that makes it easy to create and publish your own web pages while learning HTML, CSS & JavaScript.

JSbin
A live pastebin for HTML, CSS & JavaScript and a range of processors, including SCSS, CoffeeScript, Jade.

Dirty Markup
A web-based interface for cleaning your dirty HTML/CSS/JS markup.