Apps similar to PortKiller include TCP Viewer, which is open source but paid. TCPView and CurrPorts are free. Other options are Tauno Monitor, Serial Port Monitor, PortNote and Port Checker. You can choose from more than 10 Network Analyzers like PortKiller for Windows, Mac, Linux, self-hosting and the web.
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.
United Kingdom
AccessPort is serial port monitoring tool for technicians, engineers and software developers designing or debugging serial port related projects.
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.
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
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.
This project is a cross-platform serial port assistant. It can run on Windows, Linux, Android, and macOS.
