Free Port Monitor - Version 1.0 Free Port Monitor is one free network port monitoring software, it enables you to monitor all open TCP ports on the local and remote computer, show one alert message or send your one warning email once the your computer, web servers and network server becomes unavailable, it is one useful network tool from FreePortMonitor.com, at the best, it is one absolute freeware. This network tool is easy to use very much, and can work in silent background.