Free alternative to the OpenGL Utility Toolkit

Just like GLUT, freeglut is a helper library that can be used to create OpenGL applications. It allows easy creation of windows with OpenGL drawing contexts and callback-based input event handling.

Website: http://freeglut.sourceforge.net/
Platforms supported: Win32, Linux
Headers to include: GL/freeglut.bi
Header version: 3.0.0