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NFC relay application for Android

NFCGate is an Android application meant to capture, analyze, or modify NFC traffic. It can be used as a researching tool to reverse engineer protocols or assess the security of protocols against traffic modifications.

Notice: This application was developed for security research purposes by students of the Secure Mobile Networking Lab at TU Darmstadt. Please do not use this application for malicious purposes.


  • On-device capture: Captures NFC traffic sent and received by other applications running on the device.
  • Relay: Relays NFC traffic between two devices. One device operates as a "reader" reading an NFC tag, the other device emulates an NFC tag using the Host Card Emulation (HCE).
  • Replay: Replays previously captured NFC traffic in either "reader" or "tag" mode.
  • Clone: Clones the initial tag information (e.g. ID).
  • pcapng export of captured NFC traffic, readable by Wireshark.

Requirements for specific modes:

  • NFC support
  • Android 4.4+ (API level 19+)
  • Xposed: On-device capture, relay tag mode, replay tag mode, clone mode.
  • ARMv8-A, ARMv7: Relay tag mode, replay tag mode, clone mode.
  • HCE: Relay tag mode, replay tag mode, clone mode.


NFCGate provides an in-app status check. For further notes on compatibility see the compatibility document.

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Version 2.1.1 (2020-06-29)

Android Versions:
  • Target: 8.1
  • MinVer: 4.4
8 Libraries detected:

Download (2.3 M)

Version 2.0.0 (2019-05-10)