Block-based coding with tons of capabilities

    Built on top of Scratch.

    Try it out
    GitHub Credits Extensions Desktop Docs Scratch 2 Packager

    What's new?

    CattyMod has improved loading extensions from URLs!

    CattyNews

    Mobiles are now Welcome!

    Found a cool Scratch Project but it needs a keyboard? Try CattyMod's Mobile Controls feature!

    Discover CattyMod

    🚀

    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!

    🧩

    More Extensions!

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

    🎨

    Customize it!

    Make the workspace truly yours. Pick between accent colors, toggle dark mode, and activate built-in Addons to make it truly yours.

    📱

    Mobiles Welcome!

    Play Scratch Projects that require a Keyboard via CattyMod's Mobile Controls!

    ⚡

    Run Projects Fast!

    CattyMod is based off TurboWarp, a Scratch Mod known for its speed, so all projects will run as fast!

    ▶️

    There's even more!

    These cards are just the tip of the Iceberg. Click "Try it out" and see the others!

    Blocks illustration

    CattyMod

    CattyMod is not affiliated with Scratch, the Scratch Team, the Scratch Foundation, or any Scratch mods.
    Scratch is a project of the Scratch Foundation. It is available for free at https://scratch.org/.