Xtreme-Firmware is a custom operating system for the Flipper Zero designed to expand hardware capabilities and remove software restrictions. It functions as a multi-protocol signal emulator for capturing and replaying RFID, NFC, Sub-GHz, and Infrared signals to test hardware security.
The project features a specialized USB HID attack framework for sending keystroke payloads and spoofing device identifiers over USB and Bluetooth. It also includes a WiFi penetration testing suite for scanning, sniffing, and sending deauthentication frames using a wireless development board.
Broad capabilities cover radio frequency analysis, infrared remote bruteforcing, and access control code fuzzing. The system provides tools for hardware interface customization, including visual asset pack management and a progressive content unlocking system based on numerical levels. Additional utility is provided through a USB to UART bridging system and a built-in command line interface.