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

Cross-platform music production software

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

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

DyNet: The Dynamic Neural Network Toolkit

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

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.

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

Compiler for Neural Network hardware accelerators

Open Source toolpath generator for 3D printers

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

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

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

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

A simple GUI calculator🧮 built using C++

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

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

ESP8266 WiFi Connection manager with web captive portal

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

Open Source Routing Engine for OpenStreetMap

Mobile Shell

Point Cloud Library (PCL)

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

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

High-level tracing language for Linux eBPF

Bitcoin Core integration/staging tree

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

RGB Driver for Linux

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

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

ArduPlane, ArduCopter, ArduRover, ArduSub source

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

Tensors and Dynamic neural networks in Python with strong GPU acceleration

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

The user-friendly command line shell.

Solidity, the Smart Contract Programming Language

A modern open source rendering engine for animation and visual effects

GNU Radio – the Free and Open Software Radio Ecosystem

An Open Source Machine Learning Framework for Everyone

An open source re-implementation of RollerCoaster Tycoon 2 🎢

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

cuML - RAPIDS Machine Learning Library

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

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.

:computer: Desktop Syncing Client for ownCloud

OpenVDB - Sparse volume data structure and tools

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

Cryptography Toolkit

Shōgun

Multipass orchestrates virtual Ubuntu instances

Xbox 360 Emulator Research Project

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

An RSS/Atom feed reader for text terminals

Nodejs bindings to OpenCV 3 and OpenCV 4

Diablo build for modern operating systems

Python bindings for the Chromium Embedded Framework (CEF)

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

The reference P4 software switch