Cpp Library GitHub Repositories (2026) · Open Source Tools

Fast and exact implementation of the C++ from_chars functions for number types: 4x to 10x faster than strtod, part of GCC 12, MySQL, DuckDB, Chromium, Redis and WebKit/Safari

A modern C++17/C++20 glTF 2.0 library focused on speed, correctness, and usability

C++ Library for Audio Digital Signal Processing

A general-purpose lightweight C++ graph library

Recipes for the ConanCenter repository

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

The DirectX Tool Kit (aka DirectXTK) is a collection of helper classes for writing DirectX 11.x code in C++

The DirectX Tool Kit (aka DirectXTK12) is a collection of helper classes for writing DirectX 12 code in C++

Easy to use C++17 HTTP Server with no compromise on performances. https://matt-42.github.io/lithium

Expressive Vector Engine - SIMD in C++ Goes Brrrr

DirectXMesh geometry processing library

C++23 client for NOAA Storm Prediction Center convective and fire-weather outlooks, mesoscale discussions, watches, and storm reports.

A simple and powerful entity component system (ECS) written in C++17

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