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

  2. Online Interpreters in JavaScript. Online coding and REPL. Run and share code.

  3. Pastebin.com is a website where you can store text for a certain period of time.

  4. Plunker is an online community for creating, collaborating on and sharing your web development ideas.

  5. HTML/CSS/JS and Markdown Code Playground For Web Designers and Developers

  6. dabblet is an interactive playground for quickly testing snippets of CSS and HTML code.

  7. PrivateBin is a minimalist, open source online pastebin where the server has zero knowledge of...