The Proxmark is an RFID swiss-army tool, allowing for both high and low level interactions with the vast majority of RFID tags and systems world-wide. Originally built by Jonathan Westhues over 10 years ago, the device has progressively evolved into the industry standard tool for RFID Analysis.
Its versatility has seen it adapted to many industries and uses: from RFID enthusiasts, academic research, product development, law enforcement and penetration testing.
There has been a rapid evolution of the hardware and software in the last few years, resulting in mature and minaturised versions of the hardware. There are revisions optimised for in-the-field use, such as red-teaming or pen-testing, and desktop versions tweaked for research use in the office or lab. In September 2021, the "iCopy-X" was released - a completely portable and standalone RFID Cloning device with an embedded Proxmark 3. The iCopy-X is the most versatile Proxmark-powered device to date - a culmination of many efforts to make an electronically stable, physically compact and portable device that is easy to use, while maintaining full control for expert users.
In mid-2026 - there were major announcements: the iCopy-X was open-sourced, allowing pentesters to take full control of their device - and the Proxmark 5 device was also announced.