Web Audio DAW. Use the HTML5 Web Audio API for dynamic sound synthesis. It's like jQuery for your ears.
Navigable waveform built on Web Audio and Canvas
An audio effects library for Web Audio, made by www.dinahmoe.com
Media Tags Reader (ID3, MP4, FLAC)
A Web Audio framework for making interactive music in the browser.
Midi Writer Js
Flocking - Creative audio synthesis for the Web
Making life easy to create a MIDI-app on the web. Includes a library to program synesthesia into your app for memory recognition or for creating trippy effects. Convert soundfonts for Guitar, Bass, Drums, ect. into code that can be read by the browser. Supports multiple simultaneous instruments and perfect timing.
The HTML5 Audio Compatibility Layer
web audio library for games
Library to simplify the way you create and manipulate sounds with the Web Audio API.
Web Audio Library