This free serial port monitor is a powerful communication packet data analyzer and COM RS232 sniffer. It can spy, capture, view, analyze, and test COM port activity, making it ideal for performing COM port connection and traffic analysis.

This system is a versatile device interface testing tool that can be used as a modem data transfer viewer and more. The Serial Monitor software is ideal for monitoring the data flow between serial devices and Windows applications, debugging com port connections, developing, reverse-engineering, and implementing serial protocol, serial device driver development, serial hardware development, researching the functionality of any third-party software and hardware, and testing software and hardware.
The Free Serial Port Monitor is an indispensable tool for a wide range of professionals including programmers, beta-testers, software developers, hardware engineers, IT support specialists, industrial control personnel, SCADA software engineers, science technicians, systems integrators, consultants, lab experts, and University students. If you need a reliable and effective system for monitoring and analyzing serial port communication, then look no further than the Free Software Serial Port Monitor.
Version 3.31: Brand new free software - free serial port monitor