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MIDI Loupe allows you to monitor and log MIDI messages from one or multiple MIDI devices. It is mostly useful for debugging and testing your MIDI setup, if something goes wrong.

  • Every registered MIDI Source is listed and has a separate color, so you can easy differentiate between the messages. In the device list you can select/deselect the devices for logging.
  • You can save the logs to disk and also load them for later inspection.

What's New

Version 1.5:
  • User now can switch between note, decimal or hexadecimal values in the monitor view
  • Fix: respects "stay on top" setting after app start
  • Fix: note on/off messages now correct
  • Small OS-X Sierra fixes


  • OS X 10.8 or later

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MIDI Loupe User Discussion


Current Version (1.x)


Downloads 92
Version Downloads 92
License Free
Date 20 Feb 2017
Platform Intel 64 / OS X
Price Free
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