RunKit + 
Try any Node.js package right in your browser
This is a playground to test code. It runs a full Node.js environment and already has all of npm’s 1,000,000+ packages pre-installed, including runkit-midi. Try it out:
// generate or downoad your MIDI file:
const download = require('download');
const midi = await download('https://github.com/jazz-soft/runkit-midi/raw/main/test.mid');
// create a MIDI player/viewer:
const rkmidi = require('runkit-midi');
rkmidi(midi);
// click the [▶run] button... ↓
- all documents on RunKit are public
require()any package directly from npm- use arrow functions, classes, template strings, and most of ES6
awaitany promise instead of using callbacks (example)- create your own embedded node.js snippets
This service is provided by RunKit and is not affiliated with npm, Inc or the package authors.