Test your JavaScript, CSS, HTML or scripts all in one online platform with JSFiddle code editor. JSFiddle is your free “code playground” to test all of your code tinkering needs. It’s easy peasy to save different versions of code and run tests with all your languages on one screen.
Perfect for the novice, even easier for the advanced developer. You can use it for doc demos, bug reporting (test-case) for Github issues, presenting code answers on stack overflow, live code collaboration, or even code snippet hosting.