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Serial Port Monitor
as an optimal Serial port monitoring solution

Serial Port Monitor is easy to use system utility developed by Eltima Software to monitor and analyze RS232/422/485 COM ports. This RS232 analyzer serves as a gatekeeper on the flow of data via RS232 serial ports during applications or driver development, testing, debugging and optimization of serial devices, and so on.

Eltima designed RS232 analyser to solve the problems faced by system integrators, firmware/software developers, and site engineers in monitoring, analyzing, displaying and of course logging of RS232 serial ports activities. Complicated data networks, high-level communication protocols incorporated by many device manufacturers made this serial protocol analyzer an indispensable tool in the hands of engineers and developers.

With this RS232 protocol analyzer you can:

  • Monitor, capture and analyze RS232 port activities

    RS232 serial port that is already opened by another application can be connected to and monitored by Serial Port Monitor in real time. That is, all the data that flows through the monitored port will as well pass through the monitoring tool. This way you can zero down on problems in real time and fix them.

    Moreover, the monitored data can be redirected to a specified file or copied to a clipboard. Serial protocol analyzer can intercept, and record all serial input/output control codes (IOCTLs) parameters with full detail. Each monitoring session can be saved and used whenever necessary.
  • Monitor multiple RS232 serial ports in one session

    This is a patented functionality of monitoring more than one RS232 serial port in a session simultaneously. It can collect communication data on how applications interact with various RS232 serial ports and record them on the first-in-first-out basis, thereby making data analysis more convenient.
  • View recorded data in different ways

    The data captured by this serial protocol analyzer can be viewed in all 4 different views simultaneously that is, table, line, dump or terminal mode with each display providing a unique way of representing RS232 analyzer captured data. Apart from that, you can filter out only the data important to you with the monitoring filter option, thereby saving a lot of your productive time.
  • Emulate data sending to serial device

    The terminal mode feature allows you to send data in various formats (string, binary, decimal, octal, hexadecimal, mixed) to the monitored port via RS232 analyser as if it was sent on behalf of the monitored app. This helps you keep track of the reaction of monitored devices to some special commands and data.

    Software engineers and developers can now analyze RS232 without any glitch thanks to Serial Port Monitor.

This RS232 analyzer can:

Captures data in real-time
Export raw data to a specified file or copy to a clipboard
Supports all baud rates
Supports full duplex mode
Visualize control lines status
Have tools with preset for unique stream filtering
Log incoming and outgoing data streams
Test different software with precise request timing.
Monitor multiple serial ports simultaneously
Digitally sign internal drivers

Corporate, OEM & Source code

Whether you're looking at redistributing our RS232 port analyzer technology as a part of your product or considering RS232 port analyzer software for an enterprise-wide deployment, we offer flexible and affordable corporate solutions designed to meet your needs.

Source Code License

Ordering Source Code license for RS232 port analyzer you receive all extensively commented programming source code (GUI sources are not included). Our leading developers will help you implement Source codes and understand the advanced part of the product.

Read our Source Code license terms and conditions

Site Licensing

Unlimited Site License grants you the right to install and utilize RS232 port analyzer application with GUI on unlimited number of computers by all workers of your company worldwide. It is the ideal solution if your company has representation offices in the different parts of the world.

If you know the certain number of computers to be equipped with RS232 port analyzer you may consider obtaining Limited Site License. The advantage of Site Licensing comparing to multiple Single licenses is one license key for all company computers.

What customers say

  • Without the RS232 port analyzer from Eltima, I would not have been able to easily and quickly see the operation of the several serial ports carrying data to the navigation program...
    Jon Kinne

Overall rating 4.6
based on 75 reviews

Let's get started

RS232 port analyzer for Windows
Demo version limitations
• fully functional 14-day trial
System Requirements
Windows 2000, Windows (32-bit and 64-bit): XP/2003/2008/ Vista/7/8/10, Windows Server 2012
Latest Update
Version 7.0.312 (18th Apr, 2017) Release notes