C++

BEPUphysicsbepu/bepuphysics2

A pure C# 3D real-time physics simulation library for .NET 8, offering high-performance rigid body physics.

Chronoprojectchrono/chrono

High-performance C++ library for multiphysics and multibody dynamics simulations, including rigid/flexible bodies, granular dynamics, and fluid-solid interaction.

SocketCAN Utilslinux-can/can-utils

A collection of userspace utilities for Linux CAN subsystem (SocketCAN) to display, record, generate, and analyze CAN bus traffic.

Widelandswidelands/widelands

A free, open-source real-time strategy game inspired by Settlers II, featuring singleplayer campaigns and multiplayer mode.

Octokit.NEToctokit/octokit.net

A .NET client library for interacting with the GitHub API, supporting .NET Framework 4.6+ and .NET Standard 2.0+.

maplabethz-asl/maplab

An open research-oriented C++ framework for multi-session and multi-robot visual-inertial mapping and localization.

ghdlghdl/ghdl

An open-source analyzer, compiler, simulator, and experimental synthesizer for VHDL, supporting multiple language standards and backends.

Fast-RTPSeProsima/Fast-RTPS

A C++ implementation of the DDS (Data Distribution Service) standard for real-time publish-subscribe communications.

OpenMVopenmv/openmv

An open-source, programmable machine vision camera platform that runs Python and supports AI models like TensorFlow.

DirectXTKMicrosoft/DirectXTK

A collection of helper classes for writing DirectX 11.x C++ code for Win32 desktop, Xbox One, and UWP applications.

POTrflamary/POT

A comprehensive Python library for solving optimal transport problems with solvers for linear, entropic, Gromov-Wasserstein, and unbalanced OT, plus machine learning applications.

CSharpFunctionalExtensionsvkhorikov/CSharpFunctionalExtensions

A C# library providing functional programming constructs like Result and Maybe types to write more robust and expressive code.

LimboAIlimbonaut/limboai

A Godot 4 plugin providing Behavior Trees and Hierarchical State Machines for creating complex AI behaviors in games.

Minizrichgel999/miniz

A single C source file library implementing zlib compression, PNG writing, and ZIP archive manipulation with MIT licensing.

WAVMWAVM/WAVM

A high-performance WebAssembly virtual machine designed for non-browser applications, leveraging LLVM for near-native speed.

concurrencppDavid-Haim/concurrencpp

A modern C++ concurrency library providing tasks, executors, timers, and C++20 coroutines for writing highly concurrent applications.

pikepdfpikepdf/pikepdf

A Python library for reading, writing, repairing, and transforming PDFs, powered by the qpdf C++ library.

LeGO-LOAMRobustFieldAutonomyLab/LeGO-LOAM

A lightweight, ground-optimized lidar odometry and mapping system for ROS-compatible unmanned ground vehicles.

EttercapEttercap/ettercap

A comprehensive suite for man-in-the-middle attacks, featuring live connection sniffing, content filtering, and protocol dissection.

pg_partmanpgpartman/pg_partman

A PostgreSQL extension that automates the creation and maintenance of time-based and number-based table partitions.

pspgokbob/pspg

A Unix pager with rich table browsing features, designed for PostgreSQL but supporting MySQL, SQLite, and other database clients.

ScummVMscummvm/scummvm

A virtual machine that lets you play classic point-and-click adventure games and RPGs on modern devices using original game data files.

fbthriftfacebook/fbthrift

Facebook's evolved branch of Apache Thrift, featuring a new C++ compiler and fully asynchronous server for high-performance RPC and serialization.

yojimbomas-bandwidth/yojimbo

A C++ network library for client/server games with secure authentication, reliable messaging, and competitive multiplayer features.

S2 Geometry Librarygoogle/s2geometry

A C++ library for computational geometry and spatial indexing on the sphere, designed for geographic data.

BlzhawkTASEmulators/BizHawk

A multi-system emulator with advanced recording, debugging, and tool-assisted speedrunning (TAS) features.

sqlite_ormfnc12/sqlite_orm

A lightweight, header-only C++ ORM for SQLite with modern C++14/17/20 features and no raw string queries.

GacUIvczh-libraries/GacUI

A GPU-accelerated, cross-platform C++ UI library with MVVM, data binding, and XML-based UI description.

MongooseOScesanta/mongoose-os

An open-source IoT firmware development framework for ESP32, STM32, and other microcontrollers with cloud integration and OTA updates.

gojiebayanyiwu/gojieba

A high-performance Golang port of the Jieba Chinese text segmentation library.

ZetaSQLgoogle/zetasql

A reusable analyzer framework for the GoogleSQL language, providing parsing, type checking, and semantic analysis for SQL engines.

bondMicrosoft/bond

A cross-platform framework for working with schematized data, now archived as of March 2025.

Teeworldsteeworlds/teeworlds

A free retro multiplayer shooter with up to 16 players, featuring team deathmatch, capture the flag, and custom map creation.

PackrlibGDX/packr

Packages Java applications (JAR, assets, and a JVM) into native executables for Windows, Linux, and macOS distribution.

packrlibgdx/packr

Packages Java applications (JAR, assets, and a JVM) into native executables for Windows, Linux, and macOS distribution.

NUnitnunit/nunit

A unit-testing framework for all .NET languages, supporting macOS, Linux, and Windows.