protokol ☆

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Description:
MIDI and OSC Monitor

Type: Cask | Latest Version: 0.6.4,131@0 | Tracked Since: Dec 28, 2025

Links: Homepage | @hexler | formulae.brew.sh

Category: Developer tools

Tags: midi osc networking debugging multimedia developer-tools

Install: brew install --cask protokol

About:
Protokol is a dedicated monitoring tool for MIDI and OSC (Open Sound Control) data streams. It allows developers and technicians to inspect, filter, and log network traffic and device messages in real-time. This is essential for debugging connectivity issues and ensuring data integrity between music applications and hardware controllers.

Key Features:

Real-time monitoring of MIDI and OSC data streams
Advanced message filtering and search capabilities
Support for multiple network interfaces and ports
Detailed message inspection and logging

Use Cases:

Debugging communication between a DAW and external hardware synthesizers
Analyzing OSC data streams sent from interactive installations or mobile apps
Verifying MIDI controller mappings and output data

Alternatives:

MIDI Monitor – A macOS-specific utility focused purely on MIDI, whereas Protokol also supports the OSC protocol.
OSC Monitor – Often refers to simpler, single-purpose tools, while Protokol offers a more comprehensive interface for both MIDI and OSC.

Version History

Detected	Version	Rev	Change	Commit
Sep 15, 2025 12:47pm	0.6.2,129	0	VERSION_BUMP	b65b1e01
Sep 6, 2025 1:39am	0.6.2,129	0	VERSION_BUMP	112375cb