Port Inspector what's listening on your machine checking…

Local service not detected

Run the local agent to see your ports here.

A website on its own cannot read your machine's open ports — the browser sandbox forbids it. Port Inspector uses a tiny local agent that listens on 127.0.0.1:8790 and serves the port list as JSON. This page reads that agent directly from your browser. Start it once and this page becomes a live dashboard.

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Start with web2local

Running web2local? Start the agent from here — no terminal. You approve the exact command in web2local's dialog before it runs.

Run it yourself (no web2local)

No web2local? Download the agent and run it — pure Python standard library, nothing to install. Set the Agent port above to match.

It binds 127.0.0.1 only. With --allow-kill, row actions can send SIGTERM after confirmation. Stop the agent with Ctrl-C.