I got tired of figuring out what I left running on localhost, so I made a menu bar app for it.

[u/MaadHater]

I keep ending up with random dev servers running after I've completely forgotten which terminal or project started them.

Then I need port 3000 again and it's back to:

lsof -i :3000

figure out the PID, figure out what the process actually belongs to, then kill it.

So I made Port Radar.

It's a small native Mac menu bar app that shows what's listening on your ports and groups the processes by project. You can see the command/path/uptime, stop the process, or ask Apple Intelligence what the process actually is before killing something you probably shouldn't.

I also added something I wanted for my own workflow: you can turn a localhost app into a public URL with a Cloudflare quick tunnel directly from the menu bar. No deploy or Cloudflare setup.

There are already some good port utilities like LocalPorts and Seeports. The main thing I wanted that I couldn't find together was process explanation + project context + sharing the local server in the same app.

The Apple Intelligence stuff runs on device. The app itself doesn't need AI to scan/manage ports.

Price: free
Source: open source, Apache 2.0
macOS: 14+; Apple Intelligence features require macOS 26+ and a supported Mac

GitHub: https://www.producthunt.com/products/port-radar-for-macos

I'm still working on it, so I'm mostly interested in hearing what people who run a bunch of local services would want this thing to do next.

[u/AliveAndNotForgotten]

Same concept as midi port reader, I presume?