> Video.js is a web video player built from the ground up for an HTML5 world. It supports HTML5 and Flash video, as well as YouTube and Vimeo (through [plugins](https://github.com/videojs/video.js/wiki/Plugins)). It supports video playback on desktops and mobile devices. This project was started mid 2010, and the player is now used on over 50,000 websites.
To build your own custom version read the section on [contributing code](CONTRIBUTING.md#contributing-code) and ["Building your own copy"](CONTRIBUTING.md#building-your-own-copy-of-videojs) in the contributing guide.