I made small tool that can be used to get the difference of two LDraw files. This tool was written with the LDraw files exported by Bricklink Studio in mind and does not support references to external submodels. This is the user interface:
It has two modes "Partlist" and "Difference Model". An explanation on how to use it and how to install it can be found on the GitHub repo.
It has two modes "Partlist" and "Difference Model". An explanation on how to use it and how to install it can be found on the GitHub repo.