stone ☆

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Description:
TCP/IP packet repeater in the application layer

Type: Formula | Tracked Since: Dec 28, 2025

Links: Homepage | formulae.brew.sh

Category: Networking

Tags: networking tcp proxy relay debugging

Install: brew install stone

About:
Stone is a TCP/IP packet repeater that operates at the application layer, designed to relay TCP connections between a client and a server. It can be used for port forwarding, traffic monitoring, or debugging network applications by acting as an intermediary. This utility is particularly useful for analyzing or manipulating traffic in complex network environments without modifying the original applications.

Key Features:

Acts as a transparent TCP proxy or relay
Supports multiple simultaneous connections
Lightweight and simple command-line configuration
Useful for traffic inspection and debugging

Use Cases:

Forwarding TCP ports across firewalls or NATs
Debugging client-server applications by inspecting traffic

Alternatives:

socat – A more versatile tool that supports a wide range of protocols and socket types, whereas stone is focused specifically on TCP relaying.
netcat – A general-purpose networking utility that can be used for simple relays, but lacks some of stone's dedicated features for persistent TCP proxying.

Version History

Detected	Version	Rev	Change	Commit
Sep 15, 2025 12:21pm		0	VERSION_BUMP	d1274400
Sep 13, 2024 2:21am		0	VERSION_BUMP	835b6503