Test your MIDI keyboard online
The MIDI test uses the Web MIDI API to detect any connected MIDI device. Played notes appear live on the virtual keyboard, so you can quickly check that all keys, pads and knobs send correctly.
MIDI Test
Test your MIDI keyboard or controller online in the browser. Connect it, allow access and play — notes light up on the virtual keyboard.
Pitchbend
0
Modulation
0
MIDI event log
Pitch-bend, modulation & event log
The pitch-bend wheel, modulation wheel and every incoming MIDI message are shown and logged in real time — ideal for troubleshooting keyboards, drum pads and DAW controllers.
Supported browsers
Web MIDI works in Chrome, Edge and Firefox. In Safari the Web MIDI API is not available. Access requires a secure connection (HTTPS) and your permission.
Frequently asked questions
My MIDI device isn’t detected.
Connect it before loading, allow access and refresh the page if needed. Safari does not support the Web MIDI API — use Chrome, Edge or Firefox.
Does it work with USB and Bluetooth?
Yes, both are supported as long as the operating system exposes the device as a MIDI input.