Band.js : An interface for the Web Audio API that supports rhythms, multiple instruments, repeating sections, and complex time signatures.
jsmad : jsmad is a pure javascript MP3 decoder, based on libmad, with an ID3 decoder written from scratch.
TensorFlow.js : A WebGL accelerated, browser based JavaScript library for training and deploying ML models. Use flexible and intuitive APIs to build and train models ...
Parsley.js : Javascript forms validation.
Powerful, UX aware & Dead simple.
howler.js : howler.js is an audio library for the modern web. It defaults to Web Audio API and falls back to HTML5 Audio.
Rainbow is a code syntax highlighting library written in Javascript.
It was designed to be lightweight (1.4kb), easy to use, and extendable.
It is completely themable via CSS.