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 RealTerm, which is both free and Open Source. Other great apps like Listen32 are Tauno Monitor, CoolTerm, YAT - Yet Another Terminal and SerialMon.
This project is a cross-platform serial port assistant. It can run on Windows, Linux, Android, and macOS.
Serial Port Assistant is the most popular Android & Android Tablet alternative to Listen32.
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.
