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

Protocol Buffers - Google's data interchange format

C++ based gRPC (C++, Python, Ruby, Objective-C, PHP, C#)

LevelDB is a fast key-value storage library written at Google that provides an ordered mapping from string keys to string values.

The Serenity Operating System 🐞

FlatBuffers: Memory Efficient Serialization Library

Google's common Java, C++ and JavaScript library for parsing, formatting, and validating international phone numbers.

Abseil Common Libraries (C++)

MuseScore is an open source and free music notation software. For support, contribution, bug reports, visit MuseScore.org. Fork and make pull requests!

A cross-platform, reimplementation of Notepad++

RE2 is a fast, safe, thread-friendly alternative to backtracking regular expression engines like those used in PCRE, Perl, and Python. It is a C++ library.

A C++ library for interacting with JSON.

Matter (formerly Project CHIP) creates more connections between more objects, simplifying development for manufacturers and increasing compatibility for consumers, guided by the Connectivity Standa…

C++ implementation of the Google logging module

C++ Requests: Curl for People, a spiritual port of Python Requests.

Open Source H.264 Codec

Zcash - Internet Money

ARCore SDK for Android Studio

HarfBuzz text shaping engine

A retargetable MLIR-based machine learning compiler and runtime toolkit.

Khronos-reference front end for GLSL/ESSL, partial front end for HLSL, and a SPIR-V generator.

The home of the ICU project source code.

Automatically exported from code.google.com/p/smhasher

A collection of tools, libraries, and tests for Vulkan shader compilation.

Efficient binary-decimal and decimal-binary conversion routines for IEEE doubles.

Vulkan header files and API registry

🐿️ A collection of projects focused on connectivity that enable building cross-device experiences.