JSON that's part of C++
C++ Qt ORM (Object Relational Mapping) and ODM library
Open source PDF editor
JSON library for Arduino and embedded C++. Simple and efficient
Formatting library as an alternative to C stdio and C++ iostreams
Infrared remote library for ESP8266/ESP32
C++ Discord API Bot Library - D++ is Lightweight and scalable
The Ray Tracing in One Weekend series of books
Library to parse and emit YAML, and do it fast
Jwt.Net, a JWT (JSON Web Token) implementation for .NET
Universal serialization engine
A tiny boost library in C++11
Extremely fast, in memory, JSON and interface library for modern C++
A light weight configuration library for C++
Fast, convenient JSON serialization and parsing in C++
A modern C++ library for reading, writing, and analyzing CSV
A Template Engine for Modern C++
Parsing gigabytes of JSON per second
PDF transformation/manipulation program + library
2D & 3D TeX-Aware Vector Graphics Language
Cross-platform DICOM implementation
A file format for exchanging computational models in systems biology
Simple XML editor and XSD viewer