wellcaffeinated/PhysicsJS
A modular, extendable, and easy-to-use physics engine for javascript observed · 2026-08-28
Health v2 · maintenance only
10/100
- Activity 0
- Release rhythm 8
- Longevity 100
Flags: archived
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-03. Adoption (stars, forks) is never an input.
- gap_med: n/a
- age_days: 4908
- days_rel: n/a
- days_push: 2717
- n_releases_24m: 0
Adoption not part of the score
3712 stars · 406 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded
PhysicsJS is a modular, extendable 2D physics engine for JavaScript that supports bodies, behaviors, and multiple renderers (canvas, PIXI, etc.). It is no longer maintained; the author recommends Matter.js as its successor.
Use cases
- add 2d physics simulation to a web page
- simulate bouncing balls and collisions in the browser
- build an interactive physics demo or game in javascript
- render physics bodies with pixi or canvas
- create compound rigid bodies with constraints
When to choose
- you need a lightweight modular physics engine for a legacy browser project
- you want a simple MIT-licensed 2d physics sandbox for experimentation
When to avoid
- you need an actively maintained physics engine (use Matter.js instead)
- you need 3d physics
- you need long-term support or bug fixes
Facets
library · maturity abandoned
game-engine simulation graphics animation graphics web-development simulation browser physics-engine 2d-physics collision-detection rigid-body modular unmaintained game-development nodejs javascript
5 sources
- readme: https://github.com/wellcaffeinated/PhysicsJS · fetched 2026-08-28 · cb0072240bbe
- homepage: http://wellcaffeinated.net/PhysicsJS/ · fetched 2026-08-29 · 34d19893cc3b
- site_page: https://wellcaffeinated.net/PhysicsJS/installation · fetched 2026-08-29 · 09dc586ff195
- site_page: https://wellcaffeinated.net/PhysicsJS/docs · fetched 2026-08-29 · c76c81b4d6a9
- registry_npm: https://registry.npmjs.org/physicsjs · fetched 2026-08-29 · 44a6fa0223bb
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| wellcaffeinated/PhysicsJS | main | 10 |
For agents
markdown · JSON · MCP: product_card(name="wellcaffeinated/PhysicsJS")
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem