rfdump
Tool to decode RFID tag data
Platforms: Linux · Last verified September 6, 2026
RFDump is a tool to decode RFID tags and show their meta information: tag ID, tag type, manufacturer etc. The user data memory of a tag can be displayed and modified using either a hex or an ASCII editor. In addition, the integrated cookie feature demonstrates how easy it is for a company to abuse RFID technology to spy on their customers. RFDump works with the ACG multi-tag reader or similar card reader hardware.
Only use this tool against systems you own or are explicitly authorized to test — see the disclaimer.
Getting started
Install on Kali Linux with `sudo apt install rfdump`. See the official Kali tool page and upstream homepage linked above for full usage and configuration details.
