This application developed to create demo for tutorial based on HTML, CSS, JS, jQuery. We build this for our own use but also this application have facility to be used by any user register at accounts.mercenie.com. Online many applications available which are much better than this tool, so we can't tell that its best all of others.
Its much simple to use than other tools like this, also any demo can be embed into any webpage.
For this tool you need a Mercenie Account because each demo created here is only edited by authorized user.