Cross Platform GitHub Repositories (2026) · Open Source Tools

⚔️ A cross-platform, open source, and super fast MUD client with scripting in Lua

A small C# game framework

A foundational Haxe framework for cross-platform development

Drop-in embedded database in Rust

Thunder Engine – Cross-platform 2D and 3D game engine with modular architecture

A lightweight all-in-one terminal with 30+ protocols — SSH, RDP, SFTP, databases, Kubernetes and more. With a built-in autonomous AI Agent that plans and runs multi-turn shell commands.

Cross-platform Swift implementation of UIKit, mostly for Android

Reverse engineer and rewrite real mode DOS programs!

Rust implementation of findutils

A simple cross platform ACME client (for use with Let's Encrypt et al.)

Active Directory data ingestor for BloodHound Community Edition written in Rust. 🦀

Declarative UI toolkit for modern C++20

Cross-platform 2D game engine focused on ultimate productivity built in .NET

Automatic snapshot tool for Proxmox VE VMs and containers with retention policies

This library provides an Ant task and a Maven plugin to create Debian packages from Java builds in a truly cross platform manner.

eepp is an open source cross-platform game and application development framework heavily focused on the development of rich graphical user interfaces.

see ur network breathe

GPU-accelerated terminal board that puts all your sessions on an infinite canvas

An open source cross-platform programming language focused on efficiency.

A fast, keyboard-first database client built with Rust and GPUI.