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.

Download Center

GLEW is distributed as source and precompiled binaries. The latest release is 1.5.8 [01-31-11]:

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

An up-to-date copy is also available from the project repository:

git clone git://

Supported Extensions

The latest release contains support for OpenGL 3.3, OpenGL 4.1 and the following extensions: