Listen32 is described as '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' and is an app. There are more than 10 alternatives to Listen32 for a variety of platforms, including Windows, Linux, Mac, Flathub and Flatpak apps. The best Listen32 alternative is PortKiller, which is both free and Open Source. Other great apps like Listen32 are CoolTerm, RealTerm, Tauno Monitor and YAT - Yet Another Terminal.
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.
United States
This project is a cross-platform serial port assistant. It can run on Windows, Linux, Android, and macOS.
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.
RS-232 and RS-485 serial terminal and serial port monitor for macOS, Windows, Linux, with a Modbus RTU decoder and RS-485 sniffer, time-stamped logging, macros, triggers and ESP32, STM32, AVR firmware flashing, plus optional Lua scripting, charts, an AI assistant (BYOK) and an MCP server.
Poland
EU
