Block-based coding with tons of capabilities

Built on top of Scratch.

Try it out

GitHub Credits Packager Desktop

What's new?

CattyMod has replaced its homepage with a static HTML file for easier editing.

CattyNews

Minor Edits

Some icons have been changed across CattyMod. Look out for more!

Discover CattyMod

Import

🚀

Hello, Scratch!

Easily load your projects in seconds. Just paste any Scratch link directly into the editor homepage, or swap scratch.mit.edu in your project link with cattymod.app!

Library

🧩

Extension Paradise

Access an expanded library of capabilities. Enjoy seamless support for standard Scratch extensions, TurboWarp extensions, and CattyMod custom ones.

Personalise

🎨

Customisable

Make the workspace truly yours. Pick between accent colours, toggle dark mode, and activate built-in Addons to suit your creative workflow.