An Open Source Machine Learning Framework for Everyone

Godot Engine – Multi-platform 2D and 3D game engine

Tesseract Open Source OCR Engine (main repository)

A library that provides an embeddable, persistent key-value store for fast storage.

An open-source C++ library developed and used at Facebook.

A brief computer graphics / rendering course

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

A fast JSON parser/generator for C++ with both SAX/DOM style API

Google's Operations Research tools:

OpenGL Mathematics (GLM)

Reliable & unreliable messages over UDP. Robust message fragmentation & reassembly. P2P networking / NAT traversal. Encryption.

Main gperftools repository

Industry-standard navigation-mesh toolset for games

header only, dependency-free deep learning framework in C++14

A fast and robust web server and application server for Ruby, Python and Node.js

The Linux perf GUI for performance analysis.

A dbg(…) macro for C++

A tool for generating cross-language type declarations and interface bindings.

SwiftShader is a high-performance CPU-based implementation of the Vulkan graphics API. Its goal is to provide hardware independence for advanced 3D graphics.

EntityX - A fast, type-safe C++ Entity-Component system

Fluid simulation engine for computer graphics applications

Library to parse and work with the C++ AST

Modern C++14 library for the development of real-time graphical applications

a sample project showcasing/collecting cross platform techniques on mobile

Advanced VM detection library and tool

Yet another Clang's JSON compilation database generator for make-based build systems.