RawNFC

VivoKey Technologies

About this app

RawNFC is a powerful developer tool for communicating directly with NFC tags at the protocol level. Designed for engineers, security researchers, and NFC enthusiasts, this app allows you to send raw hexadecimal commands to NFC transponders and view their responses in real-time.

SUPPORTED TECHNOLOGIES

RawNFC supports a comprehensive range of NFC technologies:

- NFC-A (ISO 14443-3A): The most common NFC technology, used by MIFARE and NTAG chips
- NFC-B (ISO 14443-3B): Used by many secure contactless cards and identification documents
- NFC-F (JIS 6319-4): Also known as FeliCa, popular in Japan for transit and payment systems
- NFC-V (ISO 15693): Vicinity cards with longer read range, commonly used for access control
- ISO-DEP (ISO 14443-4): The application layer protocol used by smart cards and secure elements
- MIFARE Classic: NXP's proprietary protocol for classic MIFARE cards (device dependent)
- MIFARE Ultralight: Lightweight MIFARE protocol for simple storage applications (device dependent)

HOW IT WORKS

1. Select your target NFC technology from the menu
2. Enter one or more raw hex commands in the input field (one command per line)
3. Present your NFC tag to the device
4. View the raw hex responses from your tag in the output field

FEATURES

- Clean, minimal interface designed for efficiency
- Line-numbered input for multi-command sequences
- Automatic hex validation and formatting
- Share functionality to export command/response dumps
- Deep link support for automated command sequences (rawnfc:// URI scheme)
- No internet connection required for core functionality
- No data collection or tracking

USE CASES

- Debugging NFC applications and tag configurations
- Learning NFC protocols and command structures
- Security research and penetration testing
- Verifying tag behavior and response patterns
- Prototyping NFC solutions before implementation
- Testing implantable NFC transponders and wearables

ABOUT VIVOKEY

RawNFC is developed by VivoKey Technologies, leaders in implantable NFC technology and secure identity solutions. We build tools for the community of NFC enthusiasts, biohackers, and developers pushing the boundaries of human-technology integration.

Visit https://vivokey.com/rawnfc for documentation and support.

What’s new

Fixed input / output box auto-sizing based on keyboard presence