CodePen - A front end web development playground.
Microsoft Publisher - Microsoft Publisher is an entry-level desktop publishing solution.
JSFiddle - Test your JavaScript, CSS, HTML or CoffeeScript online with JSFiddle code editor.
JS Bin - Sample of the bin:
replit - Code, create, andlearn together. Use our free, collaborative, in-browser IDE to code in 50+ languages — without spending a second on setup.
Pastebin.com - Pastebin.com is a website where you can store text for a certain period of time.