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productdevbook/port-killer

A powerful cross-platform port management tool for developers. Monitor ports, manage Kubernetes port forwards, integrate Cloudflare Tunnels, and kill processes with one click.

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What it does

PortKiller is a desktop app for Mac and Windows that shows developers every active network connection running on their computer, letting them instantly shut down any process hogging a port (a numbered channel that apps use to send and receive data) with a single click. It also helps teams manage cloud infrastructure connections, including Kubernetes (a popular system for running apps at scale) and Cloudflare Tunnels, all from a small icon that lives in the menu bar or system tray.

Why it matters

With over 4,400 stars on GitHub, this tool signals strong demand for simpler developer workflow management, suggesting that engineering teams are losing meaningful time to manual troubleshooting tasks that could be automated. For founders and PMs, it highlights a broader market opportunity around developer productivity tooling that abstracts away infrastructure complexity, a space attracting significant investment and attention.

26Active

On the radar — signal detected

Stars
4.6k
Forks
171
Contributors
13
Language
Swift

Score updated Mar 15, 2026

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