Easy to use and works.
It works like a charm. My toolchain generates by default bin-files. If I configure it to produce intel hex-files and call Hex2Bin to generate a bin-file again, the result is 100% identical.
The windows executable for hex2bin is easy to use and worked for me without a hitch. I'll still need to do some tests to check for correctness, but the project is nice and easy to use.