The OpenGL Extension Wrangler Library (GLEW) is a cross-platform open-source C/C++ extension loading library. GLEW provides efficient run-time mechanisms for determining which OpenGL extensions are supported on the target platform. OpenGL core and extension functionality is exposed in a single header file. GLEW has been tested on a variety of operating systems, including Windows, Linux, Mac OS X, FreeBSD, Irix, and Solaris.

Downloads

GLEW is distributed as source and precompiled binaries.
The latest release is 2.1.0[07-31-17]:

Source ZIP |  TGZ
Binaries Windows 32-bit and 64-bit

An up-to-date copy is also available using git:

Supported Extensions

The latest release contains support for OpenGL 4.6, compatibility and forward-compatible contexts and the following extensions:

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