UEFITool by LongSoft is the most popular open-source alternative to MMTool. It is cross-platform (Windows, macOS, Linux). It features a visual tree-view of the UEFI structure.
Before attempting to use any BIOS/UEFI modification tool, it is vital to understand the significant risks involved: mmtool github
Open the newly generated output ROM file using a tool like UEFITool or the MMTool GUI. UEFITool by LongSoft is the most popular open-source
on GitHub are you looking at (e.g., AMI bios, n3mo's visualizer, etc.)? What is your main goal (e.g., BIOS modding, data analysis)? mmtool github
If you have downloaded an automation script framework from GitHub, the workflow typically follows these phases: Phase 1: Preparation