JSON that's part of C++
JSON parser in standard C
An open source RDP server
Multi-format (PDF, EPUB, MOBI, FB2, CHM, XPS, DjVu) reader for Windows
Open source PDF editor
HTML to PDF converter for PHP
A JSON viewer plugin for Notepad++
Lightweight and flexible command-line JSON processor
TeX previewer for Mac OS X
Skin changer for League of Legends (LOL)
The original Lightbox script (v2)
the MiKTeX source code
TeXstudio is a fully featured LaTeX editor
Google's data interchange format
Simple REST and HTTP API Client for .NET
Simple extensive tar-like archive format with indexing
The Apache Kafka C/C++ library
Make Zotero effective for us LaTeX holdouts
A modern C++ library for reading, writing, and analyzing CSV
Cross-platform, C implementation of the IETF QUIC protocol
JSON library for Arduino and embedded C++. Simple and efficient
10x faster string search, split, sort, and shuffle for long strings
The Ray Tracing in One Weekend series of books
Universal serialization engine
The Go support for Google's protocol buffers