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Rapier project preview
Developer ToolsAlternative to PhysXAlternative to Box2DAlternative to Havok

Rapier

Fast 2D and 3D physics engine for the Rust programming language and WebAssembly.

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LicenseApache-2.0
GitHub stars6.5k
Last commit1 weeks ago
Tags5 topics
Simd Collision DetectionRust Physics EngineWasm Physics2d 3d Rigid BodyDeveloper Tools
Overview

Why consider Rapier?

Rapier is an open-source 2D and 3D rigid-body physics engine written in pure Rust by Dimforge. Rapier delivers deterministic collision detection, joint constraints, fluid character controllers, and SIMD parallel computation for native game engines and WebAssembly browsers.

Guided learning

Learn Rapier by building

Practical setup notes, real use cases, and copy-ready examples in one focused guide.

1 min read 2 sections
In this guide2 sections

Overview of Rapier

Rapier computes rigid-body dynamics, friction constraints, and raycasting in real-time simulations.

Quickstart

bash
1cargo add rapier3d

Rapier is licensed under the Apache License Version 2.0.

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Rapier FAQs

Rapier is listed as a Developer Tools tool on TiloBox. Review the overview, features, and official documentation on this page to decide whether it solves your specific workflow.

Start with the project's GitHub repository and official website for supported installation and deployment instructions. Test the setup with representative data or a small project before rolling it out more widely.

Rapier is listed under the Apache-2.0 license. Read the complete license text and the project's notices before using, modifying, or distributing the software.

Production readiness depends on your requirements. Review maintenance activity, security practices, documentation, backup and upgrade procedures, and compatibility with your stack; then validate it in a non-production environment.

Rapier is listed as an alternative to PhysX. Compare the core workflow, deployment model, integrations, and licensing against your must-have requirements before switching.