Cpp GitHub Repositories (2026) · Open Source Tools

🎮 · Jazz² Resurrection: Native C++ reimplementation of Jazz Jackrabbit 2

The Stan Math Library is a C++ template library for automatic differentiation of any order using forward, reverse, and mixed modes. It includes a range of built-in functions for probabilistic modeling, linear algebra, and equation solving.

Confidential Consortium Framework

SonarQube C++ Community plugin (cxx plugin): This plugin adds C++ support to SonarQube with the focus on integration of existing C++ tools.

Basic Development Environment - a set of foundational C++ libraries used at Bloomberg.

Data over sound for React Native. Two phones pass bytes through the air with no network, no pairing and no account - a Nitro module wrapping ggwave, with the audio layer it doesn't have.

Solidity, the Smart Contract Programming Language

A fast usermode x86 and x86-64 emulator for Arm64 Linux

Flower: A Friendly Federated AI Framework

A flexible, high-performance serving system for machine learning models

🏋️ Python / Modern C++ Solutions of All 4073 LeetCode Problems (Weekly Update)

ArrayFire: a general purpose GPU library.

Low-latency machine code generation

C/C++/ObjC language server supporting cross references, hierarchies, completion and semantic highlighting

DeSmuME is a Nintendo DS emulator

The DLL responsible to integrate emulators with RetroAchievements.org

MOLA LiDAR Inertial Odometry (LIO) and localization

C++ DataFrame for statistical, financial, and ML analysis in modern C++

valkey-search is a C++ module which extends valkey with vector search and secondary indexing capabilities. It enables users to index and query data stored in Valkey using complex queries with filters while maintaining high performance and scalability.

Fastest library to load data from DB to DataFrames in Rust and Python