Free Port Scanner is described as 'Small, fast, easy-to-use and robust port scanner for the Win32 platform.You can scan ports on fast machines in a few seconds and can perform scan on predefined port ranges. This tool uses TCP packets to determine available hosts and open ports, service' and is an app in the network & admin category. There are more than 10 alternatives to Free Port Scanner for a variety of platforms, including Windows, Linux, Mac, Flathub and Unraid apps. The best Free Port Scanner alternative is Angry IP Scanner, which is both free and Open Source. Other great apps like Free Port Scanner are NetPeek, Advanced IP Scanner, Advanced Port Scanner and SoftPerfect Network Scanner.