Digital Twin GitHub Repositories (2026) · Open Source Tools

Semantic digital twin and 500-agent simulation laboratory for age-friendly research in historic districts.

NextFloor: draw your home in Home Assistant and watch it live in 3D. Free forever – every feature, every furniture pack, no Pro, no shop. Build your own furniture, plugins welcome. No cloud, no account.

3D floor plan for Home Assistant: draw your home in the built-in editor (rooms, walls, doors, windows, furniture, roof) and see and control lights, covers, windows, climate, media, sensors and cameras live in a neon 3D view – as a sidebar panel and dashboard card.

Open-source TypeScript framework for building operational software used by humans and AI agents.

open-source ontology platform for operational digital twins

Package manager for things. Start designing modular hardware! PartCAD is the standard for documenting manufacturable physical products (a.k.a. Digital Thread or TDP). It comes with a set of tools to maintain product information and to facilitate efficient and effective workflows at all product lifecycle phases, boosted by AI.

Eclipse Ditto™: Digital Twin framework of Eclipse IoT - main repository

Physical AI runtime for embodied agents — governed action, verified experience, physical memory, and skill evolution.

Valdrada is a real-time digital twin of New York City built from public data.

Bluetooth room presence for Home Assistant. Shows which room every iPhone, Android phone, Apple Watch and tag is in, live, on a 3D floor plan of your house. Works with the ESPHome or Shelly Bluetooth proxies you already have, and runs next to Bermuda or ESPresense. Try it in your browser: padspan.traks.ca/demo

Monorepo for iTwin.js Library

A Python native dynamical system simulation framework in the block diagram paradigm.