3d GitHub Repositories (2026) · Open Source Tools

🇨🇭 A React renderer for Three.js

Self-hosted house planner: true-scale 2D floor plan, 3D, satellite map overlay, sewer, electrical, water and underfloor heating with calculations, priced bill of materials. React + PHP, no database. By the team behind homedesignsai.pro

AI-powered 3D suite built on Blender, with an integrated agent, moodboard, generation tools and layer-based painting

Open Reality: phone video to AI-queryable 3D scenes. MCP tools for Claude/Codex/Cursor (npm openreality-mcp), the self-hostable broker, and the VGGT-SLAM library, in one repo. BSD-2-Clause.

Open source previs software in the browser: block a scene, pose characters, author camera moves and cuts, then take the same shots to an AI video model.

Open-source 3D architectural editor with a local CLI, MCP tools, and practical workflows for humans and AI agents.

Babylon.js is a powerful, beautiful, simple, and open game and rendering engine packed into a friendly JavaScript framework.

Blockbench - A low poly 3D model editor

Open CASCADE Technology (OCCT) is an open-source software development platform for 3D CAD, CAM, CAE.

JavaScript 3D Library.

A python CAD programming library

📬 Postprocessing for react-three-fiber

3D modeling in Python, built for LLMs.

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.

Your GitHub profile as a 3D pixel art building in an interactive city

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.

Curated, CC0 reference hub for 3D, VFX, and game dev. 3,400+ tools, assets, and tutorials across 12 sections. Searchable, filterable, free.

An open-source JavaScript library for world-class 3D globes and maps :earth_americas:

Official source code of FreeCAD, a free and opensource multiplatform 3D parametric modeler.

MCP server for Blender. 260 tools for modelling, materials, rendering and more, driven by Claude, Cursor, Codex, Ollama, llama.cpp, or any MCP client.