Top OPENGL GitHub Repositories & Tools (2026)

PlayStation 3 emulator and debugger

A cross-platform, OpenGL terminal emulator.

If you live in the terminal, kitty is made for you! Cross-platform, fast, feature-rich, GPU based.

Cross-platform, graphics API agnostic, "Bring Your Own Engine/Framework" style rendering library.

An open source re-implementation of RollerCoaster Tycoon 2 🎢

Filament is a real-time physically based rendering engine for Android, iOS, Windows, Linux, macOS, and WebGL2

A cross-platform, safe, pure-Rust graphics API.

Dear ImGui apps made simple: desktop, mobile, and web from one codebase. Minimal code. Maximally readable.

Avogadro libraries provide 3D rendering, visualization, analysis and data processing useful in computational chemistry, molecular modeling, bioinformatics, materials science, and related areas.

eepp is an open source cross-platform game and application development framework heavily focused on the development of rich graphical user interfaces.

Coin3D core library

Game engine for 2D and 3D projects with entity component system (ECS) and data-oriented design

Easy to use cross-platform 2D game library for C++

2D/3D graphics engine written in C++ language. It currently supports the following graphics APIs: OpenGL 3.3+, Vulkan 1.2, DirectX 11. Its current purpose is to experiment with various CG concepts and techniques.

VoxelCore – voxel game engine in C++

tlRender is an open source library for building playback and review applications for visual effects, film, and animation.

Premium audiophile grade offline music player with native DSP, Visualizer, 10-Band Equalizer, Parametric Equalizer with PreAmp and Milkdrop support, currently in initial alpha testing.

A flexible GLSL and HLSL shader editor and IDE.

3D viewer and post processing of reservoir models

Cross-platform graphics framework for C# with .NET NativeAOT | Desktop • Mobile • Web | Direct3D • Metal • OpenGL • WebGL