kripken/ammo.js

Health v2 · maintenance only

Flags: no_releases no_license

Adoption not part of the score

4558 stars · 581 forks observed · 2026-08-28

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

ammo.js is a direct port of the Bullet physics engine to JavaScript and WebAssembly using Emscripten, with autogenerated bindings that mirror the original C++ API. It supports rigid body dynamics, soft bodies (rope, cloth, volume), heightmap terrain, and vehicles in web applications.

Use cases

• add physics simulation to a WebGL game in the browser
• simulate cloth or rope soft bodies in JavaScript
• run Bullet physics engine in a web page
• build a vehicle physics demo with WebGL
• use rigid body collision detection in a browser game
• port C++ physics code to the web

When to choose

• you need the full Bullet physics feature set (soft bodies, vehicles, heightmaps) in JavaScript
• you want API parity with the original Bullet C++ engine
• you are building a browser game or WebGL demo needing realistic physics

When to avoid

• you write your game in C++ and compile with Emscripten (use Bullet directly via emscripten-ports instead)
• you need a lightweight, hand-written JS physics engine with simpler integration
• you need strong TypeScript typings or modern package management out of the box

Facets

library · maturity maintenance

simulation graphics game-engine wasm graphics simulation web-development browser wasm cross-platform physics-engine bullet-physics emscripten webassembly rigid-body-dynamics soft-body collision-detection game-development javascript

Member repositories

For agents

markdown · JSON · MCP: product_card(name="kripken/ammo.js")