Whether you’re building a MIDI-based project or troubleshooting your music gear, having a clear view of incoming and outgoing MIDI messages can save you hours. MIDILLI MIDI Monitor is a clean, lightweight tool that lets you do exactly that — right from your browser.
The Configurator includes a built-in MIDI Listener, but if it’s unavailable or you simply want to quickly check the validity of another device’s configuration, this tool comes in handy.
Here are its features:
- Live MIDI monitoring — Instantly displays incoming MIDI messages (Note On/Off, CC, Pitch Bend, Clock, SysEx, etc.)
- No setup needed — Just open the HTML file in Chrome or any WebMIDI-compatible browser
- Convert between hexadecimal and decimal format — Some of us are more comfortable with decimals
- Loopback support — Perfect for testing your virtual MIDI routing and message filters
- Developer-friendly — Great for debugging MIDI-related JavaScript/WebMIDI projects
Any questions? Feel free to ask.