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PortKiller

productdevbook · Monitor ports and manage their processes

CaskDeveloper ToolsAuto-updatesApple silicon · Intel
Homepage
From homebrew/cask
30-day installs30#1283 in App
1-year installs30Last 365 days
Latest version3.4.03 days ago · Oct 17
Download size8.3MBarm64 / x86_64 · dmg
Release cadenceIrregular1 release in 30 days

PortKiller is a Developer Tools app for Mac. It is free to use. It needs macOS 15 or later.

About

PortKiller is a native macOS port-management app for developers. It discovers listening TCP ports, searches by port or process name, and lets you stop processes. Favorites, watched ports, Kubernetes port forwarding and Cloudflare Tunnel management help organize local development. Requires macOS 15 or later.

New What’s new in 3.4.0 OpenNavo editorial

On macOS, adds port status when creating favorites or watches, custom port names, descriptions, folders and type overrides, a collapsible inspector, and Kubernetes context and per-connection kubeconfig selection. Fixes cloudflared process cleanup and port-forward reconnection, and avoids rebuilding the UI on every background scan.

See all 1 release

Install and uninstall

Homebrew installs the app in your Applications folder.

Install without Homebrew

Download the same file Homebrew uses: github.com/productdevbook/port-killer/releases/download/v3.4.0/PortKiller-v3.4.0-macos.dmg

SHA-256 only checks that the download is complete; it is not a security certification. See the SHA-256 and download address

Uninstall command
$ brew uninstall --cask \portkiller

A regular uninstall removes the app and keeps its settings and caches.

Deep clean (optional)
$ brew uninstall --zap --cask \portkiller

--zap also deletes the settings, caches and other files listed in the Homebrew definition. They can include data shared with other apps and cannot be restored, and it does not guarantee that nothing is left.See which files are removed

Facts and sources

Price
Free macnative.io/apps/portkillerChecked Oct 17
Vendor system requirements
Apple silicon: Runs natively · macOS 15 or laterIntel: Runs natively · macOS 15 or latergithub.com/productdevbook/port-killer/blob/v3.4.0/platforms/macos/scripts/build-app.shChecked Oct 17
Version 3.4.0
Recorded by Homebrew on Oct 17

Questions

Is PortKiller safe?

PortKiller is in Homebrew’s official catalog and has not been disabled. Since September 2026, Homebrew disables apps that fail macOS Gatekeeper checks. When installing, Homebrew checks the download from github.com against its SHA-256 checksum. It was installed 30 times through Homebrew in the last 30 days.

Is PortKiller free?

Yes, PortKiller is free to use. Source: macnative.io/apps/portkiller, checked Oct 17.

Is PortKiller open source?

PortKiller’s source code is public on GitHub (productdevbook/port-killer) under the MIT license.

How do I completely uninstall PortKiller on a Mac?

Run brew uninstall --cask portkiller. It quits the app. To delete its settings and caches as well, run brew uninstall --zap --cask portkiller. That also deletes 4 files and folders, including ~/Library/Preferences/com.portkiller.app.plist.

Does PortKiller run on Apple silicon (M1 and later) Macs?

Yes. The vendor states it runs natively on Apple silicon. Source: github.com/productdevbook/port-killer/blob/v3.4.0/platforms/macos/scripts/build-app.sh, checked Oct 17.

Where does PortKiller store its settings and data?

Its settings are in ~/Library/Preferences/com.portkiller.app.plist. These locations come from Homebrew’s clean-up list.

What is the latest version of PortKiller?

The latest version is 3.4.0, added to Homebrew on Oct 17. PortKiller updates itself; to update it with Homebrew, run brew upgrade --cask --greedy portkiller.