Com port testing software for Windows

[Timberr]

What such soft do you know?

 

[Wobyse]

Try ComTestSerial

 

[Vecare]

What such soft do you know?

If you want professional software, the best variant will be Serial Port Tester by Eltima(com port tester). It is a professional and powerful system utility for COM port monitoring and testing. Serial Port Tester displays, logs and analyzes all serial port activity in a system. You will be able track down problems that may occur during application or driver development, testing and optimization of serial devices, or something other.