An Open Source Machine Learning Framework for Everyone

Tesseract Open Source OCR Engine (main repository)

Dear ImGui: Bloat-free Graphical User interface for C++ with minimal dependencies

JSON for Modern C++

GoogleTest - Google Testing and Mocking Framework

Caffe: a fast open framework for deep learning.

Carbon Language's main repository: documents, design, implementation, and related tools. (NOTE: Carbon Language is experimental; see README)

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

Fast C++ logging library.

Share a single keyboard and mouse between multiple computers.

Emscripten: An LLVM-to-WebAssembly Compiler

FlatBuffers: Memory Efficient Serialization Library

A modern formatting library

Parsing gigabytes of JSON per second : used by Facebook/Meta Velox, the Node.js runtime, ClickHouse, WatermelonDB, Apache Doris, Milvus, StarRocks

A modern, C++-native, test framework for unit-tests, TDD and BDD - using C++14, C++17 and later (C++11 support is in v2.x branch, and C++03 on the Catch1.x branch)

DOOM Open Source Release

Simple, secure & standards compliant web server for the most demanding of applications

Abseil Common Libraries (C++)

Seamless operability between C++11 and Python

A free and strong UCI chess engine

MNN: A blazing-fast, lightweight inference engine battle-tested by Alibaba, powering high-performance on-device LLMs and Edge AI.

The official Open-Asset-Importer-Library Repository. Loads 40+ 3D-file-formats into one unified and clean data structure.

The Z3 Theorem Prover

A fast multi-producer, multi-consumer lock-free concurrent queue for C++11

A General-purpose Task-parallel Programming System in C++

Simple and Fast Multimedia Library

OpenGL Mathematics (GLM)

mawww's experiment for a better code editor

ZeroMQ core engine in C++, implements ZMTP/3.1

Record and Replay Framework