SterJo Wireless Network Scanner is a small tool that scans your network in a few seconds and displays a list of all connected computers or devices. It also could detect a mobile or any other portable device that is already connected to your network.

For each device it will show the IP address, Host name, MAC address and it will identify your router and local computer. This is a very useful utility if you suspect that some of your neighbours are connected to your network without your permission.