The Lightweight Java Game Library (LWJGL) is an open-source software library that provides bindings to a variety of C libraries for video game developers to Java. It exposes cross-platform libraries commonly used in developing video games and multimedia titles, such as Vulkan, OpenGL, GLFW, OpenAL and OpenCL.
The primary goal of the project is to provide a way for Java developers to get access to resources that are otherwise unavailable or poorly implemented on the existing Java platform. The main philosophy is to expose underlying technology as a thin wrapper, thus creating an API close to the original. It is also the basis of many high-level Java game engines and libraries, such as libGDX or the jMonkeyEngine.