Tone.js
A Web Audio framework for making interactive music in the browser.
Jsmediatags
Media Tags Reader (ID3, MP4, FLAC)
Audiolet
A JavaScript library for real-time audio synthesis and composition from within the browser
Web Audio Api
The Web Audio API, developed by the W3C Audio WG
Waud
Web Audio Library
Pizzicato
Library to simplify the way you create and manipulate sounds with the Web Audio API.
Midi Writer Js
♬ JavaScript library providing an API for programmatically generating expressive multi-track MIDI files in browser and Node.
Flocking
Flocking - Creative audio synthesis for the Web
Amplitudejs
A Javascript library that allows you to control the design of your media controls in your webpage -- not the browser. No dependencies (jQuery not required)
Speak.js
Text-to-Speech in JavaScript using eSpeak
Alpha Tab
alphaTab is a cross platform music notation and guitar tablature rendering library.
Wavesurfer.js
Navigable waveform built on Web Audio and Canvas
Wad
Web Audio DAW. Use the HTML5 Web Audio API for dynamic sound synthesis. It's like jQuery for your ears.
Mp3.js
A JavaScript MP3 decoder for Aurora.js
Flac.js
FLAC decoder in JavaScript
Timbre.js
JavaScript library for objective sound programming
Pedalboard.js
Open source JavaScript framework for developing audio effects for guitars using the Web Audio API.