Portero

Free, open source Mac app that shows every open port and the process behind it. Kill what you don

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Overview

Portero is a free, open source Mac app that shows every open port and the process behind it. See what

AI summary

Portero is a free, open source Mac app designed to provide users with a clear view of all open ports on their machine, detailing the processes associated with each port. It offers functionalities such as the ability to block traffic, kill processes, and detect port conflicts, making it suitable for developers and system administrators.

Who Is It For

Best for

Developers and system administrators who need to monitor and manage open ports on macOS devices.

–Not for

Users seeking a comprehensive network management tool with extensive features beyond port monitoring.

Strengths & Weaknesses

Biggest strength

Portero provides a user-friendly interface that explains processes in plain language, making it accessible for users who may not be familiar with networking concepts.

Biggest weakness

The lack of a visible pricing model or free trial may limit accessibility for some users looking for a cost-effective solution. (AI-inferred; may be outdated – founders can correct this)

Classification

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How we sourced this: Observed fields () were crawled from https://porteroapp.pages.dev/ and are stated as fact. AI-inferred fields () were generated by gpt-4o-mini and are always labelled – never presented as measured fact. Last updated: 15 July 2026. Is this your tool? Claim it to edit and get a do-follow badge.