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Test WebMIDI support in your browser.

Help

Inputs:

Outputs:

The lists above must automatically refresh when you connect/disconnect a MIDI device.
If you don't see your device listed above, try to refresh this page (Mac: Cmd+R, Win: Ctrl+R or F5).

MIDI messages:

WebMIDI is supported in Chrome, Opera and Edge 79+ under Windows, OS X and Linux.

It may be supported and working in the same browsers under Android or iOS.

The followings links will give you more information: