# PortKiller for Mac

> See what is holding a port, and free it.

A menu bar app that lists every listening TCP port with the process behind it, so you can stop a stuck dev server in one click. It also runs kubectl port-forward sessions that reconnect on their own and shows your Cloudflare Tunnels.

## Facts

- Price: Free and open source
- Developer: productdevbook
- Category: Developer Tools
- Website: https://github.com/productdevbook/port-killer
- Homebrew cask: portkiller
- Source code: https://github.com/productdevbook/port-killer
- License: MIT
- GitHub stars: 5.1k
- Last commit: 2026-10-15
- Facts checked: 2026-10-19
- MacWorthy page: https://macworthy.com/apps/portkiller/

## Install

Homebrew:

```sh
brew install --cask portkiller
```

## Questions

### Is PortKiller free?

Yes. PortKiller is free and open source under the MIT license. The source code is on GitHub at productdevbook/port-killer.

### Where can I download PortKiller for Mac?

Download PortKiller from the developer's website (github.com) and GitHub. MacWorthy links only to official sources.

### Can I install PortKiller from the Terminal?

Yes. With Homebrew, run `brew install --cask portkiller`.

### What are good alternatives to PortKiller?

Other developer tools apps for Mac worth a look are Lunavect (open source), RepoBar (open source), Zed (open source) and Ghostty (open source).

## Alternatives in Developer Tools

- [Lunavect](https://macworthy.com/apps/lunavect/): Your Claude Code and Codex sessions, watched from the menu bar. (Open source)
- [RepoBar](https://macworthy.com/apps/repobar/): Your GitHub repositories, one click from the clock. (Open source)
- [Zed](https://macworthy.com/apps/zed/): A code editor that runs at the speed of thought. (Open source)
- [Ghostty](https://macworthy.com/apps/ghostty/): A fast, feature-rich, truly native terminal. (Open source)
- [iTerm2](https://macworthy.com/apps/iterm2/): The terminal that taught macOS new tricks. (Open source)
- [Sequel Ace](https://macworthy.com/apps/sequel-ace/): The free MySQL and MariaDB client. (Open source)
- [CodeEdit](https://macworthy.com/apps/codeedit/): A native, open-source code editor in Swift. (Open source)
- [Cork](https://macworthy.com/apps/cork/): A friendly face for Homebrew. (Open source)

Tags: ports, menu bar, kubernetes, open source