JSON that's part of C++
Formatting library as an alternative to C stdio and C++ iostreams
Web Framework built on top of Qt, using the approach of Catalyst
A static analyzer for Java, C, C++, and Objective-C
Skin changer for League of Legends (LOL)
Google's data interchange format
Lighter, faster browser kernel of blink to integrate HTML UI in apps
Language-independent stack for point-to-point RPC implementation
Extremely fast, in memory, JSON and interface library for modern C++
TreeFrog Framework, High-speed C++ MVC Framework for Web Applications
10x faster string search, split, sort, and shuffle for long strings
C++ Qt ORM (Object Relational Mapping) and ODM library
Industrial-grade RPC framework used throughout Baidu
Cross-platform SDK for creating and modifying PDF documents
Nonresidential California Energy Commission Performance Compliance
Residential California Energy Commissiom Performance Compliance
ESP32 library for ACME protocol client (to get certificates)
Development toolkit for Web Services and XML data bindings for C & C++
SC is a C based meta/programming language/environment
Spatially Oriented Format for Acoustics
Resilient Image Library - successor to DevIL
C++ wrapper for Redland librdf
Simple XML editor and XSD viewer
JSON Parser written in C that outputs JSON into D-List list objects