beat port

Automatically detect if the modem on the selected COM port is connected.

Recording and playing back data from the serial communications port.

Configure your RS232 serial port and control pumps.

Add serial port support to your VB.NET and C# application.

MacMediSift is mainly a port of MediaSift for Windows from David Griffiths.

FPipe is a source port forwarder/redirector.

Command line port scanner.

RS232 to TCP/IP Converter - Virtual Serial Port Software

An advanced serial port communication tool

Access ports on computers behind firewalls/routers via reverse port forwarding.