Open source Network scanners for Windows

Angry IP Scanner

Angry IP Scanner is an open-source and cross-platform network scanner designed to be fast and simple to use. It scans IP addresses and ports as well as has many other features. (GPL)

Linux - Windows - MAC OS X


Nmap ("Network Mapper") is a free and open source utility for network exploration or security auditing. (GPL)



SNORT is an open source network intrusion prevention and detection system. (GPL) (GPL)



Wireshark is the world's foremost network protocol analyzer, and is the de facto (and often de jure) standard across many industries and educational institutions. (GPL)

Linux - FreeBSD - Windows - MAC OS X

4 applications