Intro.js doesn’t have any dependencies. All you need to do is adding the JS and CSS file, that’s it.
Afshin Mehrabani (afshin.meh at gmail.com)
and many contributors.
If you want to use Intro.js for a commercial application, theme or plugin the commercial license is the appropriate license. With this option, your source code is kept proprietary. Purchase a commercial license at introjs.com