Multi-threading Port Scanner

Multi-threading Port Scanner is a command-line application developed in Java, which gives you the possibility to scan hosts on the local network or your own computer for open ports.
This way, you can check for weak spots that leave the system vulnerable to malware attacks, as well as figure out which ports to use when establishing network connections between two machines for LAN parties.

Needs Java to work properly

The utility's not wrapped in a setup kit, but it needs the Java Runtime Environment installed to work properly. The full package consists of just one executable file that can be saved to a custom directory on the disk.
Otherwise, Multi-threading Port Scanner can be transferred to a USB flash drive to seamlessly launch it on any machine with Java. No new entries are inserted into the system registry, and no new files are generated on the disk without your consent.

Seamlessly scan hosts for open ports

The syntax is portscanner.exe IP_address number_of_threads starting_port ending_port timeout. Therefore, you can specify the IP address of the machine you're attempting to scan, number of threads to use (maximum is 500 for each connection), port range, and timeout (milliseconds). The socket timeout is set to 50ms.

Evaluation and conclusion

The software utility worked smoothly on the latest edition of Windows in our tests without any compatibility issues, since the program didn't hang, crash or prompt errors. It left a minimal footprint on system resources, running on a low amount of memory and CPU.
To sum it up, Multi-threading Port Scanner provides a straightforward solution for scanning ports on local machines using multiple threads to speed up the task. Thanks to its approachable syntax, it can be tackled with ease even by those inexperienced with console-based applications.