C Plus Plus GitHub Repositories (2026) · Open Source Tools

Return To The Roots (Settlers II(R) Clone)

Development version of plumed 2

A modern, fast, lightweight thread pool library based on C++2x

Large collection of number systems providing custom arithmetic for mixed-precision algorithm development and optimization for AI, Machine Learning, Computer Vision, Signal Processing, CAE, EDA, control, optimization, estimation, and approximation.

Zodiac Engine (ZEngine) — open-source 3D rendering engine in C++20 with Vulkan

OSI Layer 7 Mesh Networking for RF24Network & nrf24L01+ & nrf52x devices

Simple and Fast Graphical User Interface

A C++-based, cross platform ray tracing library

File sharing program using DC and ADC protocols

OSI Layer 3 Networking for nRF24L01(+) and nRF52x on Arduino and Raspberry Pi

Practical mutation testing and fault injection for C and C++

Live Video Mixer

Xapiand: A RESTful Search Engine

A general implementation of Monte Carlo Localization (MCL) algorithms written in C++17, and a ROS package that can be used in ROS 1 and ROS 2.

Examples for the Magnum C++11 graphics engine

Cross-platform modern C++ GUI

LargeScale Multiphysics Scientific Simulation Environment-OneFLOW CFD

Print stack traces from running processes, or core files. Supports aarch64, x86_64, and i386

amp-embedded-infra-lib is a set of C++ libraries and headers that provide heap-less, STL like, infrastructure for embedded software development

Connectome Workbench