SuperEmbed.js detects YouTube, Vimeo, Vine, VideoPress, DailyMotion, and more embedded videos on webpages and makes them responsive. Essentially, this means they strech to fill their container while still maintaining the original aspect ratio.
Bideo.js is a javascript library that makes it super easy to add fullscreen background videos.
Plyr is a simple, accessible and customizable HTML5, YouTube and Vimeo media player.
Youtube Gallery Wall transforms a UL element containing links to Youtube videos into a "wall" of video thumbnails automatically. Moving your mouse over each thumbnail (or tapping on a mobile devices) gives you the option to play the video inside a lightbox.
Tone.js is a Web Audio framework for creating interactive music in the browser. The architecture of Tone.js aims to be familiar to both musicians and audio programmers looking to create web-based audio applications.
A nice looking audio player that you can use on your website, created by using HML5 Audio, jQuery and CSS.
Loud links is a simple tiny Javascript library to add interaction sounds to your website. The library creates HTML5 audio element and uses it to play mp3/ogg audio files which is currently supported in all browsers.
howler.js is an audio library for the modern web. It defaults to Web Audio API and falls back to HTML5 Audio.
canvid is a tiny dependency free library for playback of relatively short videos on canvas elements.
Microm is a beautiful library to convert browser microphone to mp3 in Javascript.
Microm goal it's to make trivial to play and convert audio in the browser.
jQuery Video Extend is a plugin to extend HTML5 videos as:
APlayer is a beautiful HTML5 music player by using javascript. It has some options to customize.
Exportify is a javascript library to export your Spotify playlists using the Web API. This application provides a simple interface for doing that using the Spotify Web API.
AudioControls is a simple lightweight jQuery plugin, helps you to create your own audio player, playlist and additional features.
PreViewTube.js is a jQuery plugin for animating YouTube thumbnail images.