jbox2d/jbox2d
a 2d Java physics engine, native java port of the C++ physics engines Box2D and LiquidFun observed · 2026-08-28
Health v2 · maintenance only
32/100
- Activity 0
- Release rhythm 35
- Longevity 100
Flags: no_releases
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: 4623
- days_rel: n/a
- days_push: 713
- n_releases_24m: 0
Adoption not part of the score
1147 stars · 216 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded
JBox2d is a native Java port of the C++ Box2D and LiquidFun 2D physics engines, providing rigid body simulation, joints, continuous collision detection, and LiquidFun particle physics. It includes a serialization module and a testbed framework for running physics demos.
Use cases
- simulate 2d rigid body physics in a java game
- add gravity and collision detection to a jvm application
- run liquid particle fluid simulation in java
- port box2d physics to android or gwt web
- test 2d physics scenarios with a testbed framework
When to choose
- you need a mature, permissively licensed 2D physics engine on the JVM
- you want Box2D/LiquidFun behavior with Java-native code
- you're targeting Android, desktop, or browser (via GWT/TeaVM) with Java
When to avoid
- you need 3D physics
- you need cutting-edge performance or active feature development
- you're not on the JVM
Facets
library · maturity maintenance
simulation graphics game-engine serialization simulation graphics jvm cross-platform browser physics-engine box2d liquidfun rigid-body-physics particle-simulation gwt collision-detection game-development
2 sources
- readme: https://github.com/jbox2d/jbox2d · fetched 2026-08-28 · 4b2c907181dd
- homepage: http://www.jbox2d.org · fetched 2026-08-29 · e5ccabe46309
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| jbox2d/jbox2d | main | 32 |
For agents
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem