The xchange library provides a free framework for structured data representation in C/C++ (C99 or later), and includes JSON parsing and emitting functions. It is free to use, in any way you like, without licensing restrictions. Is is also a dependency of redisx, which is a free and independent C/C++ Redis / Valkey client library that will be packaged separately. License: Unlicense Upstream source is at: https://github.com/Smithsonian/xchange Project site is at: https://smithsonian.github.io/xchange/