moserial is a clean, friendly gtk-based serial terminal for the GNOME desktop. It is primarily intended for technical users and hardware hackers who need to communicate with embedded systems, test equipment, and serial consoles.


SUDT AccessPort is described as 'AccessPort is serial port monitoring tool for technicians, engineers and software developers designing or debugging serial port related projects' and is an app. There are more than 10 alternatives to SUDT AccessPort for a variety of platforms, including Windows, Linux, Mac, Flathub and Flatpak apps. The best SUDT AccessPort alternative is PortKiller, which is both free and Open Source. Other great apps like SUDT AccessPort are CoolTerm, Tera Term, RealTerm and Tauno Monitor.
moserial is a clean, friendly gtk-based serial terminal for the GNOME desktop. It is primarily intended for technical users and hardware hackers who need to communicate with embedded systems, test equipment, and serial consoles.


Portmon is a utility that monitors and displays all serial and parallel port activity on a system. It has advanced filtering and search capabilities that make it a powerful tool for exploring the way Windows works, seeing how applications use ports, or tracking down problems in...

Listen32 tap into RS-232 transmit signals for monitoring bi-directional communications between two devices. Two COM ports are used in the listening device, the receive line of each connected to the transmit line of one of the communicating devices.




Free Software to monitor (bi-directional) Serial Port communication RS232 between two devices, use our free Bill Serial Port Monitor. This software allows you to view, log, analyse the activity of your full duplex serial RS-232 port.

If you're a firmware developer or an embedded software developer then this tool has been made for you. This modernly designed desktop application serves as a development tool to help view serial data on your COM port.




This project is a cross-platform serial port assistant. It can run on Windows, Linux, Android, and macOS.


A lightweight macOS status bar app that monitors and manages development processes running on ports 2000-6000. The app provides real-time process detection and allows you to kill individual processes or all processes at once.
