Browser-first Audio to MIDI conversion with Basic Pitch for JavaScript and TypeScript.

MIDI-like instruments from webaudio

Convert binary midi into JSON

Parse and write MIDI files

Functions to work with midi numbers

Low-level MIDI support for Node.js

MIDI hardware IO

Midi parser & player engine for browser or Node. Works well with single or multitrack MIDI files.

MIDI and SoundFont2/DLS library with no compromises

This library is able to play soundfonts (sf2 files) with the Web Audio API.

Music-theory primitives — Hz ↔ MIDI ↔ name, cents, scales, pitch snapping

A cross-browser wrapper for the Web Audio API which aims to closely follow the standard.

Decode audio to AudioBuffer; unscoped alias of @audio/decode

Javascript audio library for the modern web.

_This package is part of the openDAW SDK_

Standalone native audio and video renderer for File Viewer; HLS fallback and MIDI inspection are explicit opt-in capabilities.

Parse intervals in shorthand notation

WEBMIDI.js makes it easy to talk to MIDI instruments from a browser or from Node.js. It simplifies the control of external or virtual MIDI instruments with functions such as playNote(), sendPitchBend(), sendControlChange(), etc. It also allows reacting to

MIDI library for Node.js and web-browsers

Explicit MIDI access, port resources, and lifecycle subscriptions