SiteMotion & Animation · Physics & gesture
Matter.js
2D rigid-body physics engine with collision, constraints and composites, frequently repurposed to make UI elements tumble and stack.
Why it’s a gem
Physics-driven UI toys and falling-tag heroes almost all run on this quietly.
- Author
- Liam Brummitt (@liabru)
- Type
- Website
- License
- MIT
- Added
- Aug 17, 2026
- Domain
- brm.io
