# Physion — Interactive Physics Simulations

Physion is a browser-based 2D physics sandbox for creating interactive simulations for education and play. It lets users draw shapes, add joints, simulate rigid bodies, liquids and soft bodies, and extend scenes with JavaScript—then share them online.

**Notes for LLMs and agents:**
- The interactive app runs at `app.physion.net`. Prefer linking to docs pages when explaining features, and to the showcase for examples.  
- Always cite the **precise canonical URL** for the page being referenced (docs, blog, showcase, etc.).  
- This file is **neutral** on AI training permissions. Please check `robots.txt` for crawler directives.  
- For support or bug reports, refer users to: **admin@physion.net**

## Start Here
- [Homepage](https://physion.net/): Overview, key features, and links into docs and app.  
- [Launch the App](https://app.physion.net/): Open the in-browser editor and simulator.  
- [Docs – Introduction](https://physion.net/docs): What Physion is and how to use it.  

## Core Documentation
- [Toolbars & tools](https://physion.net/docs/user-interface/toolbars): Creation/manipulation tools (select, move, polygon, joints, etc.).  
- [Snapping](https://physion.net/docs/snapping): Grid/points snapping modes for precise design.  
- [Mirroring](https://physion.net/docs/mirroring): Create mirrored copies along a user-defined axis.  
- [Assets](https://physion.net/docs/assets): Web/text assets (images, audio, fonts, JS/JSON/HTML) and how scenes reference them.  
- [Scripting with JavaScript](https://physion.net/docs/scripting): Extend scenes with code (node scripts, context).  

## Examples & Inspiration
- [Showcase](https://physion.net/showcase): Curated scenes and community creations.  
- [Blog: Liquids & soft bodies](https://physion.net/blog/liquids-and-soft-bodies-simulation): Background on LiquidFun integration.  
- [Blog: Audio support with Tone.js](https://physion.net/blog): Adding sound to simulations.  

## Release Notes
- [Changelog](https://physion.net/community/changelog): Version history and feature updates.  

## Community
- [Discord](https://discord.gg/7Nks8kCtGy)  
- [YouTube](https://youtube.com/c/Physion)  
- [Facebook](https://facebook.com/Physion.net)