Only download from established communities. The original development traces back to the and Google Code archives (now defunct). Today, the most trusted aggregator is the Proxmark3 forums and the Iceman fork resources.
Once the verified software was running, Alex saw the potential. The interface allowed him to:
After a successful read, replace the original with a (writable) card. Select "Clone Card" or "Start Duplication" .
Before searching for a download, you must understand what this tool actually does. NFC PM Pro (often referred to in forums as "Proxmark3 Easy" companion software or a GUI for Mifare Classic cards) is a Windows-based graphical user interface. It is designed to interact with NFC readers (like the ACR122U or PN532) and the Proxmark3 hardware.