JSON for Modern C++

Telegram Desktop messaging app

A fast JSON parser/generator for C++ with both SAX/DOM style API

Amnezia VPN Client (Desktop+Mobile)

Zcash - Internet Money

Telegram Bot API server

Corvusoft's Restbed framework brings asynchronous RESTful functionality to C++ applications.

C++ framework for json-rpc (json remote procedure call)

QJson is a qt-based library that maps JSON data to QVariant objects.

a fast STL inspired C++ library for embedded, games and realtime

C++ application server

The screenshot program with Qt.