JS.do is described as 'Js.do is a JavaScript online source code editor. When you need to write and test JavaScript code, it's very useful to have a simple page where you can paste or type your code and run online tests, save and share snippets of code or full javascript projects' and is an website in the development category. There are more than 10 alternatives to JS.do, not only websites but also apps for a variety of platforms, including Windows, Linux, Mac and Android apps. The best JS.do alternative is Pastebin.com, which is free. Other great sites and apps similar to JS.do are CodePen, jsFiddle, JSPad and JS Bin.