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Serial Port Monitor in Linux OS

Olga Weis Olga Weis

Some users may use Linux systems to read serial ports and monitor their system’s serial activity. We have some solutions that will run on the Linux OS:

Serial Monitor

This serial port monitor for Linux is a plugin that lets you display all serial port activity initiated by other applications.

Serial Monitor


  • You can see the actual data flow as well as events such as the opening and closing of ports and changes in the control and status lines
  • It intercepts the calls between a serial port driver and an application enabling direct monitoring of the serial I/O

You can evaluate the plugin for free but continued use requires a license that will cost you $95.


This free Linux serial sniffer provides a basic serial port monitor. This utility is a component of the Debian operating system.


  • it is capable of sending data to serial devices;
  • the author has not needed to make updates to the code since 2011 but continues to support the program;
  • component of the Debian OS.


  • it is a command line tool that does not present a user-friendly interface.

Linux Serial Sniffer

Here is a Linux Serial Sniffer application that is free to use


  • It can display monitored data on the screen or send it to disk;
  • customize the monitoring process with the included user filters;
  • users can intercept and extend the data stream from either direction to facilitate troubleshooting and testing.
  • free


  • Last update was in 2002
  • Supports by x32 bit system only.

Native Linux Commands

This link is not to any dedicated software tool but rather to a page that illustrates how to use several Linux utilities designed for serial communication. It can be very informative for Linux users unfamiliar with serial communication commands and utilities. Add these tools to your Linux cheat sheet.

Serial Port Monitor

Requirements: Windows (32-bit and 64-bit): Vista/7/8/10/11, Windows Server 2008/2012/2016/2019/2022, Windows on ARM , 9.87MB size
Version 9.5.589 (16 Nov, 2023) Release notes
Category: Communication Application