AngryIP Scanner, an open-source and cross platform network scanner, is fast and easy to use. It can scan IP addresses and ports, as well as many other features. It can scan IP addresses from any range and any of their ports. It is lightweight and cross-platform. It doesn't require installation and can be copied and used wherever you like. Angry IP scanner simply pings each IP to verify that it is alive. If it is, it will optionally resolve its hostname, determine the MAC address, scan ports, and so on.