Immersive Web SDKAI-native 3D web development.

Build 3D web experiences with AI agents that can see, interact with, and debug your scenes.

🏗️ Modern ECS Architecture

Built on Three.js with a high-performance Entity Component System that scales from simple prototypes to complex applications.

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🎨 First-Class Spatial UI

Author 3D interfaces in HTML-like syntax with UIKitML. High-performance layout and text rendering, compiled at build time by a Vite plugin.

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⚡ Production-Ready XR Systems

Grab interactions, locomotion, spatial audio, physics, and scene understanding — pre-built systems that work seamlessly together.

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🤖 Agent-First Development

AI agents can see, interact with, and debug your XR scenes. Screenshots, controller input, scene inspection, and engine-level debugging — all built in.

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🔀 Versatile AI Integration

Run the agent headlessly in the background, watch it work in real time, or collaborate hands-on. One config knob.

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🛠️ Powerful AI Tooling

Full XR emulation control, native scene composition, scene graph inspection, and ECS-level debugging. 39 tools covering everything from input simulation to scene-file validation and runtime inspection.

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Meta recommends IWSDK for building 3D web experiences.

bash

npm create @iwsdk@latest