uikit

Build performant 3D user interfaces for
threejs using R3F and yoga.

Perfect for games, XR (VR/AR), and any web-based Spatial Computing App.

npm install three @react-three/fiber @react-three/uikit

What does it look like?

A simple UI with 2 containers horizontally aligned, rendered in fullscreen. When the user hovers over a container, the container's opacity changes.

import { createRoot } from 'react-dom/client'
import React from 'react'
import { Canvas } from '@react-three/fiber'
import { Fullscreen, Container } from '@react-three/uikit'

createRoot(document.getElementById('root')).render(
  <Canvas>
    <Fullscreen flexDirection="row" padding={10} gap={10}>
      <Container flexGrow={1} backgroundOpacity={0.5} hover={{ backgroundOpacity: 1 }} backgroundColor="red" />
      <Container flexGrow={1} backgroundOpacity={0.5} hover={{ backgroundOpacity: 1 }} backgroundColor="blue" />
    </Fullscreen>
  </Canvas>,
)

How to get started

Some familiarity with react, threejs, and @react-three/fiber, is recommended.

Get started with building your first layout, take a look at our examples to see uikit in action, or learn more about:

• All components and their properties
• Interactivity
• Custom materials
• Custom fonts
• Responsive user interfaces
• Scrolling
• Sizing
• Common pitfalls
• Optimize performance
• Theming components

Pre-styled component kits

We provide multiple kits containing themable pre-styled components. Inspired by shadcn, you can use our CLI to install the source code of any component to your desired location with one command.

For example, to add the button from the default kit, run: npx uikit component add default Button

default based on Shadcn	apfel inspired by AVP
View All Components	View All Components
npx uikit component add default Button	npx uikit component add apfel Button

Migration guides

• from Koestlich
• from HTML/CSS
• from Tailwind

Sponsors

This project is supported by a few companies and individuals building cutting edge 3D Web & XR experiences. Check them out!