An open source, turn-based strategy game with a high fantasy theme.

qTox is a chat, voice, video, and file transfer IM client using the encrypted peer-to-peer Tox protocol.

Light-weight system monitor for X (and other things, too)

Multipass orchestrates virtual Ubuntu instances

The core of our monitoring platform with a powerful configuration language and REST API.

A modern open source rendering engine for animation and visual effects

High-level tracing language for Linux eBPF

OpenVDB - Sparse volume data structure and tools

ESP8266 WiFi Connection manager with web captive portal

Interactive, thoroughly customizable maps in native Android, iOS, macOS, Node.js, and Qt applications, powered by vector tiles and OpenGL

Solidity, the Smart Contract Programming Language

Apache Traffic Server™ is a fast, scalable and extensible HTTP/1.1 and HTTP/2 compliant caching proxy server.

Mobile Shell

OpenTTD is an open source simulation game based upon Transport Tycoon Deluxe

Shōgun

Point Cloud Library (PCL)

Modern C++14 library for the development of real-time graphical applications

Lightweight, Portable, Flexible Distributed/Mobile Deep Learning with Dynamic, Mutation-aware Dataflow Dep Scheduler; for Python, R, Julia, Scala, Go, Javascript and more

DyNet: The Dynamic Neural Network Toolkit

mlpack: a fast, header-only C++ machine learning library

GNU Radio – the Free and Open Software Radio Ecosystem

The reference P4 software switch

An Open Source Machine Learning Framework for Everyone

An open source re-implementation of RollerCoaster Tycoon 2 🎢

An RSS/Atom feed reader for text terminals

Compiler for Neural Network hardware accelerators

cuML - RAPIDS Machine Learning Library

:computer: Desktop Syncing Client for ownCloud

Cryptography Toolkit

Avogadro libraries provide 3D rendering, visualization, analysis and data processing useful in computational chemistry, molecular modeling, bioinformatics, materials science, and related areas.

Xbox 360 Emulator Research Project

Decentralized cryptocurrency blockchain daemon implementing the XRP Ledger protocol in C++

Scalable, Portable and Distributed Gradient Boosting (GBDT, GBRT or GBM) Library, for Python, R, Java, Scala, C++ and more. Runs on single machine, Hadoop, Spark, Dask, Flink and DataFlow

Diablo build for modern operating systems

Cataclysm - Dark Days Ahead. A turn-based survival game set in a post-apocalyptic world.

RGB Driver for Linux

Python bindings for the Chromium Embedded Framework (CEF)

Mumble is an open-source, low-latency, high quality voice chat software.

RetroShare is a Free and Open Source cross-platform, Friend-2-Friend and secure decentralised communication platform.

Hacktoberfest 2022 | World's largest Contributor driven code dataset | Used in Quark Search Engine, @OpenGenus IQ, OpenGenus Visual Project

Open Source toolpath generator for 3D printers

Powerful, mature open-source cross-platform game engine for Python and C++, developed by Disney and CMU

A distributed, fast open-source graph database featuring horizontal scalability and high availability

ArduPlane, ArduCopter, ArduRover, ArduSub source

Stellarium is a free GPL software which renders realistic skies in real time with OpenGL. It is available for Linux/Unix, Windows and macOS. With Stellarium, you really see what you can see with your eyes, binoculars or a small telescope.

Cross-platform music production software

Bitcoin Core integration/staging tree

Eclipse OMR™ Cross platform components for building reliable, high performance language runtimes

A simple GUI calculator🧮 built using C++

An audio server, programming language, and IDE for sound synthesis and algorithmic composition.

The user-friendly command line shell.

Open Source Routing Engine for OpenStreetMap

Zeek is a powerful network analysis framework that is much different from the typical IDS you may know.

The Atomic Game Engine is a multi-platform 2D and 3D engine with a consistent API in C++, C#, JavaScript, and TypeScript

Nodejs bindings to OpenCV 3 and OpenCV 4

Tensors and Dynamic neural networks in Python with strong GPU acceleration

Stan development repository. The master branch contains the current release. The develop branch contains the latest stable development. See the Developer Process Wiki for details.

OpenMLDB is an open-source machine learning database that provides a feature platform computing consistent features for training and inference.