For the LoadFile tests, you should indicate how the do it

[vincentparrett]

Libraries that load the entire file into memory (most do) will have a distinct advantage over those that use streams and parse on the fly. I decided to use streams rather than loading into one big string first - because the file size is not known and there is a potential for out of memory errors - even with 64bit systems.

[hydrobyte]

Some libraries don't even have a method for reading or saving JSON files. I had to use Delphi's RTL functions for this. If you've noticed, that's why I highlighted the amount of memory used by the solutions. My goal was to measure what I called the "Factor." In other words, if you have a 1 MiB file, what is the multiplication factor that the library's structures will occupy in memory?