16 Best Free and Open Source Linux Serial Terminals

A serial terminal is software that allows communication with devices through a serial port, often used for debugging embedded systems and interacting with hardware like microcontrollers. It essentially acts as a bridge, displaying data sent to and received from the connected device and enabling users to send commands or data to the device

To provide an insight into the quality of software that is available, we have compiled a list of 15 useful serial terminal tools for Linux. Our findings are captured in the ratings chart below in the classic LinuxLinks-style. Only free and open source software is eligible for inclusion.

Ratings chart

Let’s explore the 16 serial terminals. Click the links in the table below to learn all about each client.

Serial Terminal Tools
Serial StudioCross-platform telemetry dashboard and real-time data visualization tool
SerialTestTest tool for serial port, Bluetooth, TCP and UDP
GTKTermSimple, graphical serial port terminal emulator
COMToolCross platform serial debug tool
moserialClean, friendly GTK-based serial terminal for the GNOME desktop
minicomText-based modem control and terminal emulation program
WhippyTermHas a number of unique features such as bookmarks and built in hex dumps
PuTTYSSH and telnet client
seriotSerial monitor and serial plotter
QSerialCross-platform serial port utility
ttystermMinimalist terminal program
sstermSimple console-based serial port terminal
SerialToolSerial-Port/TCP/UDP debugging tool
opencuMinimalistic serial terminal emulator
HTermUses wxWidgets, fmt, and spdlog
CuteComGraphical serial terminal

This article has been revamped in line with our recent announcement.

Best Free and Open Source Software Explore our comprehensive directory of recommended free and open source software. Our carefully curated collection spans every major software category.

This directory is part of our ongoing series of informative articles for Linux enthusiasts. It features hundreds of detailed reviews, along with open source alternatives to proprietary solutions from major corporations such as Google, Microsoft, Apple, Adobe, IBM, Cisco, Oracle, and Autodesk.

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Gary Stewart
Gary Stewart
7 months ago

screen?

Paul Hutchinson
Paul Hutchinson
6 months ago

Just wanted to suggest a newcomer to the list of serial programs for Linux. WhippyTerm. Tab based GUI, support for binary protocols, full feature terminal (supports ANSI colors, movement, line history, and all the things you would expect from a terminal program), under active development.

Chris
Chris
1 month ago

Here’s an Open Source new style Serial Terminal called 8N1Term.
The ASCII keyboard makes life simple: