PacketSender 1.4.8 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. PacketSender for Mac relates to Developer Tools. This software for Mac OS X was originally created by Wenqi Hu. Please check the Mac app with an antivirus before launch as it is downloaded from the developer's website, and we cannot ensure that it is safe.
From the developer:
Easily create a socket server or client with tcp or udp.
Then you can send a tcp or udp packet from this app.
You may want to check out more Mac applications, such as Packet Sender, which might be related to PacketSender.