Open-source alternatives to Jitterphysics2

GoblinPhysics

Physijs

Rapier is a cross-platform physics engine and rigid body dynamics solver designed for 2D and 3D simulations. It functions as a collision detection system and a robotics simulation framework, providing a consistent API for calculating physical interactions across different environments. The engine distinguishes itself with specialized robotics capabilities, including a toolkit for importing URDF and STL models to control multibody chains. It supports precise mechanical movement through inverse kinematics calculations and the application of PID controllers for dynamic body control. The simulat

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LiquidFun is a 2D physics engine and game physics framework designed to calculate movement and collisions for rigid bodies and particle systems. It functions as a simulation tool for integrating real-time physical interactions and dynamics into interactive applications. The framework specifically provides a particle-based fluid simulator to model liquid dynamics, including splashing, displacement, and surface tension. It also includes a soft body physics simulator for creating deformable and elastic objects that react to physical forces. The engine covers a broad range of physical interactio

This is a Haxe 4 compatible fork of deltaluca's Nape 2D physics engine.

Bullet Physics wrapper for Heaps

Box2D.NET - a C# port of Box2D, is a 2D physics engine for games, .NET, Unity3D, servers

DotRecast - a C# port of Recast & Detour, Industry-standard navigation mesh toolset for .NET, Unity3D, games, servers

Particulate.js is a JavaScript particle physics micro library (~3.7kb gz) designed to be simple, extensible, fast, and stable; it is capable of running a simulation with tens of thousands of particles and tens of thousands of constraints in real time. The core system is derived from that…

This project enables using Jolt Physics in JavaScript.

ammo.js is a JavaScript port of the Bullet physics engine, compiled via Emscripten to provide a high-performance physics library for the browser. It functions as a 3D rigid body engine and an Emscripten compiled library that enables complex physical computations using WebAssembly and JavaScript. The project provides specialized simulation capabilities for soft body physics, modeling the deformation of flexible materials like cloth and rubber, and a vehicle dynamics engine for calculating the mechanics of wheeled vehicles. The simulation surface also covers rigid body dynamics for non-deforma

Port of Box2D to JavaScript using Emscripten

Matter-js is a 2D rigid body physics engine written in JavaScript for simulating realistic physical interactions, collisions, and dynamics in web browsers. It functions as a web physics simulation library that calculates motion, gravity, and constraints for objects rendered on a web canvas. The library includes a built-in canvas physics visualizer to draw physical bodies, joints, and constraints for debugging and gameplay. It distinguishes itself through a plugin system that supports recursive dependency resolution and internal method patching to inject custom logic into the engine's executio

Lightweight 3d physics engine for javascript

A Haxe port of Walaber's C++ soft body physics engine. See the jellyPhysics-samples package for usage.