Butterchurn is a WebGL implementation of the Milkdrop Visualizer

With yarn or npm installed, run

$ yarn add butterchurn butterchurn-presets
or
$ npm install butterchurn butterchurn-presets

import butterchurn from 'butterchurn';
import butterchurnPresets from 'butterchurn-presets';

// initialize audioContext and get canvas

const visualizer = butterchurn.createVisualizer(audioContext, canvas, {
  width: 800,
  height: 600
});

// get audioNode from audio source or microphone

visualizer.connectAudio(audioNode);

// load a preset

const presets = butterchurnPresets.getPresets();
const preset = presets['Flexi, martin + geiss - dedicated to the sherwin maxawow'];

visualizer.loadPreset(preset, 0.0); // 2nd argument is the number of seconds to blend presets

// resize visualizer

visualizer.setRendererSize(1600, 1200);

// render a frame

visualizer.render();

Butterchurn requires the browser support WebGL 2.

You can test for support using our minimal isSupported script:

import isButterchurnSupported from "butterchurn/lib/isSupported.min";

if (isButterchurnSupported()) {
  // Load and use butterchurn
}

• Webamp, the fantastic reimplementation of Winamp 2.9 in HTML5 and Javascript, built by captbaritone
• Butterchurn Extension, use Butterchurn to visualize the audio from any page
• Rekt Networks, Live DJs, Archives & Exclusive Releases, built by Zei
• mStream, your personal music streaming server, built by IrosTheBeggar
• pasteur, trippy videos generated from your music, built by markneub
• ChromeAudioVisualizerExtension, put on some music and turn your browsing session into a party! built by afreakk
• Karaoke Forever, an open karaoke party system, built by bhj
• Syqel, the World's Best AI Powered Music Visualizer

• Ryan Geiss for creating MilkDrop
• Nullsoft for creating Winamp
• All the amazing preset creators, special thanks to Flexi

This project is licensed under the MIT License - see the LICENSE file for details