network scanner — free browser tool | fatcousin

find every device on your local network · pure browser · WebRTC IP · fetch probes

step 1 — detect your local IP

Uses WebRTC ICE candidates to discover your machine's LAN IP without sending anything to a server.

ports to probe

scan ports

step 2 — scan subnet

notes

Browser security limits port scanning precision — results are indicative, not exhaustive.
HTTPS pages can only probe HTTP targets; mixed-content blocks may reduce coverage.
No data ever leaves your browser — all probes are direct from your device.