Port Tester 1.0 for Mac was available to download from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. This free software for Mac OS X is an intellectual property of Colourfull Creations. We recommend checking the downloaded files with any free antivirus. Port Tester for Mac lies within Internet & Network Tools, more precisely Network tools.
From the developer:
Port Tester is a small application that was written to test out sockets/ports on the Mac. You can use it to connect to an IP and start a conversation or to listen on a specific port for data.
You may want to check out more software for Mac, such as Simple Port Tester, Quick Port Test or DVR Port Forwarder, which might be similar to Port Tester.
Network Tools
Debugging Tools