SoundManager 2 : Using HTML5 and Flash, SoundManager 2 provides reliable cross-platform audio under a single JavaScript API.
Workbox : JavaScript Libraries for adding offline support to web apps.
howler.js : howler.js is an audio library for the modern web. It defaults to Web Audio API and falls back to HTML5 Audio. This makes working with audio in JavaScr...
Moment.js : A javascript date library for parsing, validating, manipulating, and formatting dates.
stream.js : stream.js is a tiny stand-alone Javascript library that unlocks a new data structure for you: streams.
A simple library for handling keyboard shortcuts in Javascript.