JSON that's part of C++
JSON parser in standard C
Lightweight and flexible command-line JSON processor
A JSON viewer plugin for Notepad++
Skin changer for League of Legends (LOL)
Simple REST and HTTP API Client for .NET
C++ Discord API Bot Library - D++ is Lightweight and scalable
JSON library for Arduino and embedded C++. Simple and efficient
The fastest JSON library in C
A C++ library for interacting with JSON
Header-only TOML config file parser and serializer for C++17
A modern C++ library for reading, writing, and analyzing CSV
JSON implementation for Ruby
Ultra fast JSON decoder and encoder written in C with Python bindings
TreeFrog Framework, High-speed C++ MVC Framework for Web Applications
C++ Qt ORM (Object Relational Mapping) and ODM library
Parsing gigabytes of JSON per second
Library to parse and emit YAML, and do it fast
An easy to use app for installing and updating 3DS homebrew
simplejson is a simple, fast, extensible JSON encoder/decoder
Validate XML, Parse XML and Build XML rapidly
Scala macros for compile-time generation of safe and ultra-fast JSON
A fast Java JSON schema validator that supports draft V4, V6, V7, V201
Fast, convenient JSON serialization and parsing in C++
Extremely fast, in memory, JSON and interface library for modern C++