GLFW is a portable framework for OpenGL application development. It handles operating system specific tasks such OpenGL window management, resolution switching, keyboard, mouse, and joystick input, timer input, creating threads, and more.
Open source project that offer summary and download services on this page is a project that carry out their development work on other open source development sites. Their work is linked to this page via a feature called OFI, and their work is not carried out here on OSDN site.