A curated list of awesome header-only C++ libraries

C++ Requests: Curl for People, a spiritual port of Python Requests.

Cross-Platform C++ GUI Library

C++ support library that is required as a foundation for the generated djinni gluecode

Command-line tool that generates gluecode from a djinni-IDL file

SpiralKit - C++ Framework for Defold

Modern, lightweight and efficient 2D level editor

A C++ header-only HTTP/HTTPS server and client library

The fastest path to AI-powered full stack observability, even for lean teams.

ENet reliable UDP networking library

Emscripten SDK

SVG rendering and manipulation library in C++

A library of easing functions for C, C++, and Objective-C

Flexible level editor

A simple and easy-to-use library to enjoy videogames programming

A tool for generating cross-language type declarations and interface bindings. Djinni's new home is in the Snapchat org.

Convert .scml files to spine .json file. Base on Spriter Pro R11 and Spine 3.8.

Cross-platform, graphics API agnostic, "Bring Your Own Engine/Framework" style rendering library.

A Particle System for SDL3

Bullet Physics SDK: real-time collision detection and multi-physics simulation for VR, games, visual effects, robotics, machine learning etc.

high-performance rendering backend (C++, Python, C#, Java)

Prevents your Mac from going to sleep.

High performance library for creating, modiyfing and parsing PDF files in C++

Change C++ code at runtime

cr.h: A Simple C Hot Reload Header-only Library

Cap'n Proto serialization/RPC system - core tools and C++ library

C++ Library Manager for Windows, Linux, and MacOS

Simple stupid SVG parser

Simple forum software for building great communities.

Cross-platform modern C++ GUI