Cpp GitHub Repositories (2026) · Open Source Tools

Extended precision integer C++ library

librats: High-performance, lightweight P2P native library for big networks

A Qt library to write cross-platform clients for Matrix

This project is an emscripten port of GLFW written in C++ for the web/webassembly platform #wasm

Tails Adventure remade from the ground up for PC and Android

Feral programming language reference implementation

OutpostHD - Open source remake of Sierra On-Line's Outpost

C++ web framework | web development can be done with C++ as well.

Import C++ and Rust like JavaScript modules (WebAssembly & React Native)

An Android VM engine, for Android

A tool to decompile MSVC PDB files to C++ source code.

C language bindings for the Couchbase Lite embedded NoSQL database engine

C++ based Hierarchical / Finite State Machine library oriented for embedded and RTOS systems.

C++23 client for Kalshi's Predictions API. Created from Kalshi's OpenAPI and AsyncAPI specs, it covers every REST operation and WebSocket channel. The WebSocket client reconnects and resubscribes. Optional transports add retries and rate limiting.

Portable ARIB STD-B24 Caption Decoder/Renderer

B2 makes it easy to build C++ projects, everywhere.

a declarative UI library for C/C++

FLibrary: another e-book cataloger

A ray-tracing based simulation program for ice halos.

A batteries included C++ RabbitMQ Client Library/API.