Top 105 multi-platform open source projects

Telegram Desktop messaging app

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

A multi-platform C library to provide global keyboard and mouse hooks from userland.

ET: Legacy is an open source project based on the code of Wolfenstein: Enemy Territory which was released in 2010 under the terms of the GPLv3 license.

Full Source of Esenthel Engine and its Tools

Flax Engine – multi-platform 3D game engine

A docking layout system.

Lightweight Error Augmentation Framework

A lightweight well-featured CLI downloader optimized for speed and early preview.

Experimental Telegram Desktop fork.

Cocos Creator is a complete package of game development tools and workflow, including a game engine, resource management, scene editing, game preview, debug and publish one project to multiple platforms.

🏅A fancy lucky-draw tool supporting multiple platforms💻(Mac/Linux/Windows/Web/Docker)

3D Bounding Box Annotation Tool (3D-BAT) Point cloud and Image Labeling

Haskell-powered cross-platform transport-layer distributed reverse / forward proxy & tunneling solution – currently available for all TCP protocols (RDP, VNC, HTTP(S), SSH, ...).

Mr.Boom is an 8 player Bomberman clone for RetroArch/Libretro

Laravel open source e-commerce system.

Pan and zoom control for Avalonia.

XML Serialization library for Kotlin

A curated list of Kotlin Multiplatform libraries & resources.

CROSS LIB - A universal 8-bit library and some games built with it

A cross-platform GUI and ETCD client

A cross platform XAML framework for .NET

n³ The unorthodox terminal file manager

CRYENGINE is a powerful real-time game development platform created by Crytek.

Community effort to maintain and improve Jedi Academy (SP & MP) + Jedi Outcast (SP only) released by Raven Software

Defold is a completely free to use game engine for development of desktop, mobile and web games.

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

Download the latest images from Himawari-8 or DSCOVR and set it as your desktop background.

Lumino is a framework for building real-time graphics applications.

Port of Windows UWP Xaml Behaviors for Avalonia Xaml.

Webots Robot Simulator

Free Music Instrument Tuner (FMIT)

✨🐌 🐎✨ fastest npm scripts runner

Starviewer, a cross-platform open source medical imaging software

Reactive undo/redo framework for .NET.

OpenRW "Open ReWrite" is an un-official open source recreation of the classic Grand Theft Auto III game executable

.NET MAUI is the .NET Multi-platform App UI, a framework for building native device applications spanning mobile, tablet, and desktop.

HandBrake's main development repository

Pencil2D is an easy, intuitive tool to make 2D hand-drawn animations. Pencil2D is open source and cross-platform.

A closs-platform generic gameengine built on C#/.NET Standard 2.1

A modified version of the LittleC Interpreter from Herbert Schildt's C: The Complete Reference (4th Ed.)

C++11 Lightweight Redis client: async, thread-safe, no dependency, pipelining, multi-platform - NO LONGER MAINTAINED - Please check https://github.com/cpp-redis/cpp_redis

Free and Open Source API and drivers for immersive technology.

Mass Parallel Secure Shell command execution

Stride GameStudio running on Avalonia UI

High Performance Network Library for RDMA

🎨Anti-Grain Geometry for Python 3 with Cython

TrinityCore Open Source MMO Framework (master = 9.1.5.41488, 3.3.5 = 3.3.5a.12340)

Compatible client of Ace of Spades 0.75

Kotlin multi-platform implementation of Reactive Extensions

Showcasing a bare-metal multi-platform kubeadm setup with persistent storage and monitoring

Kratos Multiphysics (A.K.A Kratos) is a framework for building parallel multi-disciplinary simulation software. Modularity, extensibility and HPC are the main objectives. Kratos has BSD license and is written in C++ with extensive Python interface.

An integrated package configuration, build and deployment system for software

Conan - The open-source C/C++ package manager

The fre:ac audio converter project

A multi-platform data driven 2D diagram editor.

Archived repository. For current repo, see: https://github.com/etlegacy/etlegacy

A CLI tool to run multiple npm-scripts in parallel or sequential.

Small C game development framework

Glances an Eye on your system. A top/htop alternative for GNU/Linux, BSD, Mac OS and Windows operating systems.