Protokol

Lightweight, cross-platform console app from the makers of TouchOSC for monitoring and logging MIDI, OSC, Art-Net, and game-controller traffic in real time, used to troubleshoot control-protocol communication.

Monitoring and diagnosticsHexlerproprietaryFreeWindowsmacOSLinuxiOSAndroidVerified

Protocols it speaks

Protocol	Direction	Notes
osc	in	Core supported protocol for monitoring/logging.
art-net	in	Listed alongside MIDI and OSC as a monitored protocol.
midi-show-control	in	Generic MIDI monitor; would display raw MSC SysEx bytes but is not a dedicated MSC decoder.

What to watch for

Monitors Art-Net but not sACN (E1.31) or plain DMX512 directly — a dedicated tool like sACNView is needed for sACN.

Typical use

Watch live OSC messages between a media server, lighting console, or app during integration testing
Confirm Art-Net traffic is reaching a given machine/interface before debugging further upstream
Log control-protocol traffic on iOS/Android for field troubleshooting without a laptop

Sources

Understand the mechanism

Show networks How a one gets down a wire

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