Help out your favorite open source projects and become a better developer while doing it.

theCore: C++ embedded framework

Framework for lifting x86, amd64, aarch64, sparc32, and sparc64 program binaries to LLVM bitcode

An XRP Ledger API Server

Kodi is an award-winning free and open source home theater/media center software and entertainment hub for digital media. With its beautiful interface and powerful skinning engine, it's available for Android, BSD, Linux, macOS, iOS, tvOS and Windows.

:electron: Build cross-platform desktop apps with JavaScript, HTML, and CSS

This is the official source code of FreeCAD, a free and opensource multiplatform 3D parametric modeler. Issues are managed on our own bug tracker at https://www.freecadweb.org/tracker

Truly independent web browser

SimTK OpenSim C++ libraries and command-line applications, and Java/Python wrapping.

Header-Only C++ Library for Graph Representation and Algorithms

Bitcoin Core integration/staging tree

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

OpenToonz - An open-source full-featured 2D animation creation software

An Open Source Machine Learning Framework for Everyone

Open Source Computer Vision Library

ClickHouse is a free analytic DBMS for big data.

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

BizHawk is a multi-system emulator written in C#. BizHawk provides nice features for casual gamers such as full screen, and joypad support in addition to full rerecording and debugging tools for all system cores.

oneAPI Deep Neural Network Library (oneDNN)

ClickHouse is a free analytics DBMS for big data

Cloud-native high-performance edge/middle/service proxy

Complete Open Source and Modular solution for MMO

Fast and minimalist 3D viewer.

Hyprland is a highly customizable dynamic tiling Wayland compositor that doesn't sacrifice on its looks.

Animated sprite editor & pixel art tool (Windows, macOS, Linux)

An open-source cross-platform traceroute/ping analyser.

A C/C++ implementation of a Sass compiler

:rainbow: Node.js bindings to libsass

A lightweight, fast and extensible game server for Minecraft

Zcash - Internet Money

QT Application for Public transportation

An alternative tibia client for otserv written in C++11 and Lua, made with a modular system that uses lua scripts for ingame interface and functionality, making otclient flexible and easy to customize

Node.js bindings for librdkafka

A Qt5-based IM client for Matrix

Ethereum miner with OpenCL, CUDA and stratum support

Diablo devolved - magic behind the 1996 computer game

A TensorFlow implementation of Baidu's DeepSpeech architecture

OpenCL implementation running on the VideoCore IV GPU of the Raspberry Pi models

Shōgun

This is the COVID-19 CovidSim microsimulation model developed by the MRC Centre for Global Infectious Disease Analysis hosted at Imperial College, London.

Matplot++: A C++ Graphics Library for Data Visualization 📊🗾

TinyXML2 is a simple, small, efficient, C++ XML parser that can be easily integrated into other programs.

Cocos2d-x is a suite of open-source, cross-platform, game-development tools utilized by millions of developers across the globe. Its core has evolved to serve as the foundation for Cocos Creator 1.x & 2.x.

I2C device library collection for AVR/Arduino or other C++-based MCUs

ZeroMQ core engine in C++, implements ZMTP/3.1

Source code of open-source Colobot: Gold Edition project developed by Epsitec and TerranovaTeam

TrinityCore Open Source MMO Framework (master = 7.3.5.26124, 3.3.5 = 3.3.5a.12340)