sersniff ☆

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Description:
Program to tunnel/sniff between 2 serial ports

Type: Formula | Tracked Since: Dec 28, 2025

Links: Homepage | formulae.brew.sh

Category: Developer tools

Tags: serial tunnel sniffer debugging hardware proxy

Install: brew install sersniff

About:
Sersniff is a specialized utility for debugging and analyzing serial device communication. It creates a transparent TCP tunnel between two serial ports, allowing you to monitor and inject data into the stream. This makes it invaluable for developers working with embedded systems, routers, or other hardware that uses a serial console.

Key Features:

Real-time bidirectional sniffing of serial traffic
Acts as a TCP proxy to bridge two physical or virtual serial ports
Provides a simple interface for injecting custom data into the stream
Helpful for debugging communication protocols and device behavior

Use Cases:

Debugging a serial device by observing all incoming and outgoing data
Intercepting communication between two connected serial devices
Sending manual commands to a device that expects serial input

Alternatives:

socat – A more powerful and versatile networking utility that can also handle serial ports, but with a more complex configuration.
minicom – A full-featured terminal emulator for interactive serial sessions, but not designed for transparent tunneling or sniffing.

Version History

Detected	Version	Rev	Change	Commit
Sep 15, 2025 11:16pm		0	VERSION_BUMP	ed017004
Sep 14, 2024 7:22pm		0	VERSION_BUMP	0d563b22