chandlerprall/Physijs

Health v2 · maintenance only

Flags: no_releases

Adoption not part of the score

2859 stars · 452 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

Physijs is a physics plugin for the Three.js 3D graphics library, built on top of ammo.js (with a cannon.js branch). It runs physics simulations in a web worker and lets developers add rigid bodies, collisions, constraints, and vehicles to Three.js scenes with minimal code.

Use cases

• add physics to a three.js scene
• simulate rigid bodies and collisions in the browser
• build a 3D jenga or stacking game with three.js
• create vehicle physics in a web 3D app
• run physics simulations without blocking rendering
• use custom convex or concave collision shapes in three.js

When to choose

• you already use three.js and want easy physics integration
• you want physics running off the main thread via web workers
• you need simple rigid body, collision, and constraint setup in the browser

When to avoid

• you need a modern, actively maintained physics engine
• you use a 3D framework other than three.js
• you need advanced physics features not supported by ammo.js bindings here

Facets

plugin · maturity maintenance

game-engine simulation graphics graphics web-development browser threejs physics-engine ammojs web-worker rigid-body-physics 3d game-development javascript web

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markdown · JSON · MCP: product_card(name="chandlerprall/Physijs")