Free Tool, ShowMIDI, Makes It Easy To Visualize What’s Going On With MIDI Data


Developer Geert Bevin (Moog Music, LinnStrument, MPE standard co-author) has introduced a free and open source tool, ShowMIDI, that’s designed to make it easy to visualize what’s happening with MIDI data.

“I had this idea many years ago,” notes Bevin. “This time, when I had to wade through logs of MIDI monitor messages again, I finally rolled up my sleeves and got it implemented. I think it presents real-time MIDI data in a new way that makes it much more understandable and discoverable.”

ShowMIDI is available for macOS, Windows and Linux, with AU, VST, CLAP and LV2 formats. There’s also a standalone version.

It visualizes:

  • MIDI ports
  • channels
  • program change
  • note on/off
  • channel pressure
  • polyphonic pressure
  • continuous control change
  • pitchbend
  • RPN and NRPN
  • MPE configuration and channel modes

ShowMIDI is designed to be always on and auto-hides past information, using the spacebar you can pause the flow and focus on a data snapshot with the latest state of any MIDI entity.


ShowMIDI is available now as a free download. You can download pre-built binaries for Linux, Mac & Windows, and h@xx0rs can get the source at Github.


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