CMake

Boehm GCivmai/bdwgc

A conservative garbage collector for C and C++ providing automatic memory management without requiring language changes.

Simple Binary Encodingreal-logic/simple-binary-encoding

A high-performance binary message codec for low-latency financial applications, with multi-language support.

G2O: General framework for graph optomizationRainerKuemmerle/g2o

An open-source C++ framework for optimizing graph-based nonlinear error functions, widely used in robotics and computer vision.

DyNetclab/dynet

A neural network library optimized for dynamic structures that change per training instance, with C++ and Python bindings.

RakNetOculusVR/RakNet

A cross-platform C++ networking engine designed for game development with features like NAT traversal and voice chat.

C++ Actor Frameworkactor-framework/actor-framework

An open-source C++ framework implementing the Actor Model for building scalable, high-performance concurrent and distributed applications.

dateHowardHinnant/date

A C++ date and time library extending <chrono> with calendar types, time zones, and multiple calendar systems.

Vulkan Memory AllocatorGPUOpen-LibrariesAndSDKs/VulkanMemoryAllocator

A single-header C++ library that simplifies GPU memory allocation and resource creation for Vulkan applications.

realsense-ros:ros2-branchIntelRealSense/realsense-ros

A ROS2 wrapper for Intel RealSense cameras that provides depth, color, and IMU data as ROS topics and services.

xeus-clingQuantStack/xeus-cling

A Jupyter kernel for C++ that enables interactive computing with cling interpreter and xeus protocol.

json-cjson-c/json-c

A JSON implementation in C with reference counting object model for constructing, parsing, and serializing JSON objects.

json-cjson-c/json-c

A JSON implementation in C with reference counting object model for constructing, parsing, and serializing JSON objects.

Intermediate Graphics Library (IGL)facebook/igl

A cross-platform C++ graphics library providing a low-level GPU abstraction over Metal, Vulkan, OpenGL, and WebGL.

BlazingMQ (.1k)bloomberg/blazingmq

A modern, high-performance open source distributed message queuing system with durability, fault tolerance, and rich routing strategies.

FalcorNVIDIAGameWorks/Falcor

A real-time rendering framework for DirectX 12 and Vulkan that improves productivity in graphics research and prototyping.

MyDumpermydumper/mydumper

A high-performance, multithreaded MySQL logical backup and restoration tool with consistent snapshot support.

IKOSnasa-sw-vnv/ikos

A static analyzer for C/C++ that detects runtime errors using abstract interpretation theory.

IKOSNASA-SW-VnV/ikos

A static analyzer for C/C++ that detects runtime errors using abstract interpretation theory.

Wanglefacebook/wangle

A C++ networking library providing client/server abstractions for building consistent, modular, and composable services.

xLearnaksnzhy/xlearn

A high-performance, easy-to-use, and scalable machine learning package for linear models, factorization machines, and field-aware factorization machines.

OpenZLfacebook/openzl

A format-aware compression framework that generates specialized compressors for specific data formats, achieving high ratios with high speed.

shogunshogun-toolbox/shogun

A unified and efficient machine learning toolbox with C++ core and multi-language interfaces, developed since 1999.

OpenSubdivPixarAnimationStudios/OpenSubdiv

An open-source library for high-performance subdivision surface evaluation on CPU and GPU, matching Pixar's Renderman precision.

Uncrustifyuncrustify/uncrustify

A highly configurable source code beautifier for C, C++, C#, Objective-C, D, Java, Pawn, and Vala.

ETLETLCPP/etl

A C++ template library for embedded systems with fixed-capacity containers and no dynamic memory allocation.

Qt Creatorqt-creator/qt-creator

A cross-platform integrated development environment (IDE) for building applications with Qt across desktop, embedded, and mobile platforms.

libqrencode Wfukuchi/libqrencode

A fast and compact C library for encoding data into QR Code symbols with direct bitmap output.

MIT Information Extraction Toolkitmit-nlp/MITIE

A free, state-of-the-art library and toolkit for named entity extraction and binary relation detection from text.

wdtfacebook/wdt

A high-performance embedded library and CLI tool for multi-TCP data transfer between systems at near-hardware speeds.

LibrePCBLibrePCB/LibrePCB

A free, cross-platform Electronic Design Automation (EDA) suite for designing printed circuit boards.

Yocto/GLxelatihy/yocto-gl

A collection of small C++17 libraries for building data-oriented physically-based graphics algorithms.

wipEout Rewritephoboslab/wipeout-rewrite

A re-implementation of the 1995 PlayStation game wipEout, playable in a web browser and on desktop platforms.

Chronoprojectchrono/chrono

High-performance C++ library for multiphysics and multibody dynamics simulations, including rigid/flexible bodies, granular dynamics, and fluid-solid interaction.

SocketCAN Utilslinux-can/can-utils

A collection of userspace utilities for Linux CAN subsystem (SocketCAN) to display, record, generate, and analyze CAN bus traffic.

Widelandswidelands/widelands

A free, open-source real-time strategy game inspired by Settlers II, featuring singleplayer campaigns and multiplayer mode.

Glazestephenberry/glaze

An extremely fast, header-only C++23 library for JSON and binary serialization with compile-time reflection.