SizeBench

A GUI tool for analyzing and diffing .dll and .exe files

• https://devblogs.microsoft.com/performance-diagnostics/sizebench-a-new-tool-for-analyzing-windows-binary-size
• https://github.com/microsoft/SizeBench

DUMPBIN

Command line tool taht comes with Visual Studio for dumping symbols and general information about .lib files

• https://learn.microsoft.com/en-us/cpp/build/reference/dumpbin-reference

7-Zip

GUI tool that can open .lib files and you can see the symbol .txt files and all the .obj files in a list that can be sorted by size.

• https://www.7-zip.org/