Serial Port Monitor

What Serial Port Monitor customers say

Helped me upgrade my family's farming software!

September 21, 2026

I originally got the free trial to use to try and sniff a communication port coming from chicken house controllers. I wanted to know when ALARMs were triggered and the software was so old that it could display it on its GUI but did not integrate into texting or email messages. The software worked great and I was able to snoop on the port that was already being used by the original software which most products do not support or allow.

I am now working on reverse engineering the protocol to be able to send texts on ALARMs which is a better alternative to our current relay/sensaphone approach. This software is really handy and makes working with serial communication based hardware a breeze!

Usman Jamshed

Reliable app

September 11, 2026

As an electronics technician, Serial Port Monitor has been a go-to tool for troubleshooting communication issues between embedded systems. I frequently use it to track data flowing through serial ports, ensuring that signals are transmitted correctly between devices. The software is straightforward, and I’ve found the interface to be very user-friendly. The log files are easy to analyze, which saves me time when diagnosing issues. However, when I work with large volumes of data, there is sometimes a slight delay, but it’s not frequent enough to cause any major disruptions. Overall, it’s an essential tool for anyone working with serial communication in electronics.

Rachel A. Carter, Electronics Technician

Good serial port analyzer tool

August 27, 2026

As a software developer working with IoT devices, I regularly use Serial Port Monitor to analyze communication between devices and our server. The real-time monitoring and logging features are fantastic—allowing me to capture detailed data from every serial interaction. One of the things I love most is the software’s ability to log data over extended periods, which is extremely useful for debugging intermittent communication problems. The only minor issue I had was that sometimes the software doesn’t automatically detect the ports on startup, requiring me to manually configure them. Once I did that, everything worked perfectly, and it’s been smooth sailing ever since. I would definitely recommend this tool to other developers working with serial connections.

Daniel L. Thompson, Software Developer

Great tool for my Home Automation Projects

May 20, 2026

I have a low mix of wifi and a high mix of RS-232 devices that I designed. Before, if I added a sensor or other devices and my code was all in Python, it didn’t work for some reason. I would debug the communication problem with Putty by sending commands. This does work; however, if you are reading noise or anything else between your port and the device, you may not see it with PuTTY. This changes everything as I can monitor the port in real time. I see it will be helpful in other work with devices that are not well documented, to figure out their protocols and incorporate them for my use. I have worked with other Serial Port Monitors and even wrote my own. This is the best one to use, to me.

Ron Huffman

Excellent tool

February 20, 2026

I’m an electronics enthusiast and hobbyist – no professional, just someone who loves tinkering with projects at home. When I needed to monitor communication between my computer and a serial device, I started looking for suitable software. I tried several alternatives, but most of them felt either overly complicated or had an interface straight out of the nineties. Serial Port Monitor was different from the very first launch. Setting up a new monitoring session takes just a few clicks – you select the port, choose your view, and you’re good to go. No complex configuration, no lengthy manual reading. It just works. What I appreciate most is the clear, real-time data display. I could finally see exactly what my devices were saying to each other and quickly pinpoint where the problem was.

Petr Tancman