JUCE is an open-source cross-platform C++ application framework
Browser automation framework and ecosystem
Portable and lightweight cross-platform desktop application
The open big data serving engine
NativeScript for Android using v8
Web Framework built on top of Qt, using the approach of Catalyst
Restbed framework brings asynchronous RESTful functionality
SDL library for Android, including several games.
Borland's Object Windows Library for the modern age
Software libraries for effective development of desktop applications.
Eclipse 4diac the open source solution for industrial automation
ALFOUR Programming language. Simple, safe, power, multi-platform.
Python bindings for the Chromium Embedded Framework (CEF)
An installation and update framework for Windows desktop apps
The best library to work with .Net Assemblies in any programming lang.
Build Cross-platform Applications
Middleware for distributed applications
PHP bindings for the cross-platform GUI library wxWidgets.