Formatting library as an alternative to C stdio and C++ iostreams
C++ Qt ORM (Object Relational Mapping) and ODM library
2D & 3D TeX-Aware Vector Graphics Language
Development toolkit for Web Services and XML data bindings for C & C++
Simple C++ XML processing
C++ framework for json-rpc (json remote procedure call)
Industry standard communication with compliant image generators.
ESP8266 framework for Homie, a lightweight MQTT convention
A cross-platform XML/CSS based eBook reader
Open-DIS implements the IEEE DIS protocol in multiple languages.
Provides message-box' like functionality for scripts
A gui for linux users of miniHomer, a GPS tracker
c++ xml data binding tool (free - lgpl)