Ports•Runs on Request

Port Scanner

Look up common port assignments. This browser utility does not perform live TCP scans.

Developer workbench

Configure. Run. Inspect.

Port reference only. Browser JavaScript cannot perform arbitrary TCP port scans.

⌘ / Ctrl + Enter to run

Input

4 input bytes

Enter a port number from 1 to 65535.

Run the reference lookup.

Review the common service assignment, when available.

Use a network-capable local tool for actual reachability testing.

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