UEFITool - A cross-platform C++/Qt program that allows you to extract, modify and modify UEFI firmware images
It supports parsing full BIOS images beginning with the flash descriptor, or any binary files containing UEFI volume volumes.
MDL forums started the original development of PhoenixTool's structure mode. However, the program's engine was able to be used in other projects such as UEFIPatch and UBU.
Note: Although Finder indicates no version number for this application, the developer refers to it as version 0.28.0.