Angry IP Scanner
Angry IP scanner is a very fast IP address and port scanner. It can scan IP addresses in any range as well as any ports. It is cross-platform and lightweight. Not requiring any installations, it can be freely copied and used anywhere.
Angry IP scanner simply pings each IP address to check if it’s alive, then optionally it is resolving its hostname, determines the MAC address, scans ports, etc. The amount of gathered data about each host can be extended with plugins. Scanning results can be saved to CSV , TEXT, XML or IP-Port list files. With help of plugins, Angry IP Scanner can gather any information about scanned IPs. Anybody who can write Java code is able to write plugins and extend functionality of Angry IP Scanner.