On the other end of the spectrum there is [1]. It's both performance and usability oriented, although compile times are probably higher. Nlohmann is the slowes

On the other end of the spectrum there is [1]. It's both performance and usability oriented, although compile times are probably higher. Nlohmann is the slowest out of the popular libraries, AFAIK, and not particularly more usable than rapidjson, in my experience. So "better than nlohmann" is not very novel. [1] https://github.com/beached/daw_json_link https://github.com/beached/daw_json_link