NetBeans is Integrated Development Environment (IDE) for developing complex applications.

Pure Data (Pd) is a visual programming language for creating interactive computer music and multimedia works.

wxWidgets (wix-widgets, formerly wxWindows) is a widget toolkit and tools library for creating graphical user interfaces (GUIs) for cross-platform application…

Qt (cute) is a cross-platform application framework that is used for developing application software that can be run on various software and hardware.

openFrameworks is an open source toolkit designed for "creative coding". OpenFrameworks is written in C++ and built on top of OpenGL.