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

An XRP Ledger API Server

Converters between Armadillo matrices (C++) and Numpy arrays using Pybind11

Monolithic kernel, drivers and support libraries for x86_64 and m68k.

A few classes for extremely fast json parsing/serializing in modern C++. Possibly the fastest json parser in C++. Possibly the fastest json serializer in C++.

Helper for live555

Simple ftp server written in C++

RobOptim Core Layer: interface and basic mathematical tools

XMPP network library

OpenGL/WebGL Planet Generation

A small C++ finite element method implementation developed as a part of my master's thesis

WinHelp file viewer

A killer modern C++ library for interacting with JSON.

A cross-platform 2D game engine accompanied by a strong toolset for visual novels.

ROS 2 nodes wrapping core MRPT functionality: localization, autonomous navigation, rawlogs, etc. SLAM is in other packages.

Performance-portable geometric search library

Unicode Normalization Forms

VMime Mail Library

:gem: Feel++: Finite Element Embedded Language and Library in C++

FOnline Engine is a flexible cross-platform isometric game engine

BodySlide and Outfit Studio, a tool to convert, create, and customize outfits and bodies for Bethesda games.