UEFITool

UEFITool is an open‑source application that parses UEFI firmware images into a hierarchical tree, checks their integrity, and provides a graphical interface for examining and editing the contained elements. Implemented in C++ with Qt, it runs on multiple operating systems, including macOS, and is distributed as stable pre‑built binaries or source code. The tool was created to fill the gap of cross‑platform utilities for working with UEFI images and has been updated to support newer UEFI features such as FFSv3 volumes and fixed image elements.

The primary audience consists of developers, firmware engineers, and security researchers who need to inspect, modify, or extract components from UEFI firmware used in PCs, Macs, tablets, and other devices across x86, x86‑64, arm64, and RISC‑V architectures. UEFITool’s tree view and integrity verification help users understand the structure of complex firmware packages and make precise changes.

UEFITool’s engine is also used by related projects such as UEFIExtract and UEFIFind, and it is positioned alongside other open‑source firmware tools like FMMT, Fiano, and Chipsec, offering a GUI‑based alternative to command‑line utilities.