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

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

GNU Radio – the Free and Open Software Radio Ecosystem

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

High-level tracing language for Linux

Python bindings for the Chromium Embedded Framework (CEF)

A framework for building native applications using React

An RSS/Atom feed reader for text terminals

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

Diablo build for modern operating systems

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

A modern open source rendering engine for animation and visual effects

Distributed C++ services from embedded to enterprise without rewrites

The new Windows Terminal and the original Windows console host, all in the same place!

Cross-platform music production software

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

Open Source Routing Engine for OpenStreetMap

Learn Robotics with JdeRobot

An open source re-implementation of RollerCoaster Tycoon 2 🎢

Share a single keyboard and mouse between multiple computers.

Multipass orchestrates virtual Ubuntu instances

cuML - RAPIDS Machine Learning Library

RGB Driver for Linux

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

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.

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

Solidity, the Smart Contract Programming Language

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

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

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

Cryptography Toolkit

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

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

ArduPlane, ArduCopter, ArduRover, ArduSub source

OpenVDB - Sparse volume data structure and tools

The reference P4 software switch

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

Guidelines Support Library

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

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.

Xbox 360 Emulator Research Project

A fast, powerful type checker designed for Ruby

ESP8266 WiFi Connection manager with web captive portal

A fast, scalable, high performance Gradient Boosting on Decision Trees library, used for ranking, classification, regression and other machine learning tasks for Python, R, Java, C++. Supports computation on CPU and GPU.

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

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

Mobile Shell

Point Cloud Library (PCL)

Godot Engine – Multi-platform 2D and 3D game engine