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Download PortSnap

PortSnap is a $29 one-time desktop menu bar app for macOS, Windows, and Linux that shows which process is listening on each localhost TCP port, lets you kill it with confirmation, and can restart the project using a saved start command. Port lists stay on your machine — it is not a cloud dashboard.

Get the latest Harbor build for your OS. After install, open from the menu bar to see listening ports, kill a process by port, or free port 3000 when Node says it’s already in use.

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