A-Frame vs three.js
Which should you use? A side-by-side look at what each one does, who it suits, what it costs, how hard it is to set up, and where each falls short.
Open source · MIT
A web framework for building browser-based 3D, AR and VR experiences using HTML.
Open source · MIT
A JavaScript library for drawing and animating 3D scenes in web browsers.
The short answer
Choose A-Frame if you need…
- Web developers who want to add 3D or VR scenes to a website
- Educators and artists experimenting with immersive content in the browser
- Beginners comfortable with basic HTML who want a gentle entry into 3D
- Developers who want to extend scenes with JavaScript components and community add-ons
Choose three.js if you need…
- Web developers adding interactive 3D graphics to a website
- Developers building browser-based visualizations or simple 3D animations
- People who already know JavaScript and want to start with 3D on the web
Side-by-side
| A-Frame | three.js | |
|---|---|---|
| Type | Library | Library |
| Price | Free and open source | Free and open source |
| Licence | MIT | MIT |
| GitHub stars | 17.7k | 117k |
| Setup difficulty | Beginner | Intermediate |
| How you get it | Install with a package manager | Install with a package manager |
| Main language | JavaScript | JavaScript |
| Last code update | 4 months ago | 4 days ago |
What each one is
A-Frame
A-Frame is a web framework that lets you build 3D, AR and VR scenes in a browser by writing HTML tags such as a-box and a-sphere. It sits on top of three.js and WebXR, so the same page can run on desktop, phones and VR headsets that support WebXR. People use it to make interactive 3D experiences without writing low-level graphics code.
three.js
Three.js is a JavaScript library that lets developers create 3D scenes, cameras, and objects and display them in a web page. The README describes its aim as an easy-to-use, lightweight, cross-browser, general-purpose 3D library. It currently includes WebGL and WebGPU renderers, with SVG and CSS3D renderers available as addons.
Best for
A-Frame
- Web developers who want to add 3D or VR scenes to a website
- Educators and artists experimenting with immersive content in the browser
- Beginners comfortable with basic HTML who want a gentle entry into 3D
- Developers who want to extend scenes with JavaScript components and community add-ons
three.js
- Web developers adding interactive 3D graphics to a website
- Developers building browser-based visualizations or simple 3D animations
- People who already know JavaScript and want to start with 3D on the web
Strengths
A-Frame
- Simple declarative HTML syntax lowers the barrier to building 3D scenes
- Built on three.js and WebXR, with access to raw JavaScript and WebGL when needed
- Works on desktop and smartphones even without a headset
three.js
- The README presents it as a general-purpose, cross-browser 3D library
- Includes a documented usage example that creates a scene, camera, mesh, and renderer
- Has extensive official resources listed, including examples, docs, and a manual
Not ideal for
A-Frame
- Teams needing a full game engine with a visual editor, since the README focuses on code and HTML rather than editor tooling
- Projects that must run on native apps or consoles, since it targets browsers with WebXR support
- Anyone needing heavy, high-fidelity 3D performance at the level of dedicated native engines, as it is a thin layer over three.js
three.js
- People who only need 2D graphics, since the library is focused on 3D scenes
- Anyone looking for a finished app rather than a code library to build with
- Beginners with no JavaScript experience, as the README code assumes familiarity with modules and the browser
Trade-offs
A-Frame
- Depends on browser WebXR support, so headset features vary by device and browser
- Testing in VR on a headset requires running a local HTTPS server and a third-party service described in the README
- Community components are separate projects whose quality and maintenance vary
three.js
- The full git history is about 2 GB, so a shallow clone is recommended for most users
- The README does not describe install steps beyond the import example, so setup details must come from the docs
- Working in 3D requires understanding concepts like cameras, geometry, and materials
Getting started
A-Frame
Install from npm
npm install --save aframeClone the repository for local development
git clone https://github.com/aframevr/aframe.gitthree.js
Shallow clone of the repository
git clone --depth=1 https://github.com/mrdoob/three.js.gitFrequently asked questions
What is the difference between A-Frame and three.js?
A-Frame: A web framework for building browser-based 3D, AR and VR experiences using HTML. three.js: A JavaScript library for drawing and animating 3D scenes in web browsers. A-Frame suits web developers who want to add 3d or vr scenes to a website, while three.js suits web developers adding interactive 3d graphics to a website.
Are A-Frame and three.js free?
A-Frame: Free and open source. three.js: Free and open source.
Which is easier to set up, A-Frame or three.js?
A-Frame is easier to get started with (rated beginner); three.js is rated intermediate and usually needs more setup.
Is A-Frame or three.js more popular?
three.js has more GitHub stars (117k) than A-Frame (17.7k). Popularity isn't the same as fit — check which one matches your use case above.
What are other alternatives to A-Frame and three.js?
Other options people compare them with include react-three-fiber, Jolt Physics, PlayCanvas, PixiJS, G2.
Keep comparing
Built from our catalogue entries for both products: open-source details come from each project's README (AI-assisted, refreshed weekly) and GitHub data; AI-tool details are editorial. Spotted something wrong? Let us know from either product's page.