# Babylon.js vs Three.js
URL: https://wwadd.dev/compare/babylonjs-vs-threejs
Last verified: 2026-10-01

Both render 3D in the browser with WebGL and WebGPU. Babylon.js is a full engine with physics, GUI, audio, and tooling built in; three.js is a rendering library where you choose the rest.

- Scope: Babylon.js — Engine: collisions, Havok physics, GUI, audio, animation, particles, WebXR; Three.js — Library: scenes, cameras, lights, materials, loaders; physics, input, and game structure are up to you
- Tooling: Babylon.js — Inspector, Node Material Editor, and other visual editors; Three.js — A scene editor and a Chrome DevTools extension
- Graphics APIs: Babylon.js — WebGL 1 and 2, and WebGPU; Three.js — WebGL, with a WebGPU renderer alongside
- License: Babylon.js — Apache-2.0; Three.js — MIT

Pick Babylon.js when:
- You're building a game and want physics, UI, and debugging tools in one package
- You want an official inspector and visual material editors

Pick Three.js when:
- You want a lightweight renderer and the freedom to choose physics and architecture
- Product viewers, visualizations, and sites where 3D is one part of a larger page

Bottom line: Games usually start faster on Babylon.js; custom or embedded 3D usually fits three.js. Both are mature and open source.
Sources: https://www.babylonjs.com/specifications/, https://github.com/BabylonJS/Babylon.js, https://threejs.org, https://github.com/mrdoob/three.js