Download MIDI Loupe

Watch MIDI from several devices at once. Every message shows its source, destination and a readable name, and the log can be saved or exported as CSV.

MIDI Loupe is free on the Mac App Store. Version 2.0.0 is also a direct download for macOS and Linux.

Release notes

MIDI Loupe 2.0.0 is a complete rewrite with a new MIDI engine, log saving and CSV export, a sender, routing and a virtual keyboard — now also for Linux.

Release notes

Desktop

macOS

2.0.0 · 2026-11-01

Mac App Store Download DMG

System requirements

macOS 12 Monterey or later. Apple silicon or Intel (Universal). Signed with Developer ID; the app and the DMG are notarized by Apple.
Windows

Not available yet

Direct download coming

System requirements

Requirements will be listed when the Windows download is published.
Linux

2.0.0 · 2026-11-01

Download Linux build

System requirements

64-bit x86_64 with glibc 2.39 or later (Ubuntu 24.04, Debian 13, Fedora 40 or newer). ALSA (libasound2) and GTK 3, preinstalled on desktop distributions. Unzip and run ./midiloupe; ./install.sh adds a menu entry. Outside a desktop session, access to the ALSA sequencer is required (sudo usermod -aG audio $USER, then log in again).