The Ray Tracing in One Weekend series of books
Cross-platform SDK for creating and modifying PDF documents
Open source PDF editor
Google's data interchange format
A C++ library for interacting with JSON
JSON library for Arduino and embedded C++. Simple and efficient
Lighter, faster browser kernel of blink to integrate HTML UI in apps
Web Framework built on top of Qt, using the approach of Catalyst
Formatting library as an alternative to C stdio and C++ iostreams
Library to parse and emit YAML, and do it fast
C++ Qt ORM (Object Relational Mapping) and ODM library
TreeFrog Framework, High-speed C++ MVC Framework for Web Applications
A static analyzer for Java, C, C++, and Objective-C
Generic binary protocol library that prevents injection attacks
Development toolkit for Web Services and XML data bindings for C & C++
3D pointcloud data storage and interchange format
Cross-platform DICOM implementation
Industry standard communication with compliant image generators.
C library for reading/writing values from/to Excel .xlsx files.
Kile is a feature-rich LaTeX editor
IEC 60870-5-104 protocol tester.
Resilient Image Library - successor to DevIL
C++ library for creating XLSX files for MS Excel 2007 and above.