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What are My Blocks?
As your Scratch projects grow bigger and more exciting, you'll often find yourself repeating the same group of blocks over and over again — like jumping, flashing red when hit, or drawing shapes.
💡 What is a Function?
In computer science, a Function is a reusable block of code that performs a specific task. In Scratch, custom functions are called My Blocks!
Without My Blocks (Duplicated Code)
Copying 10 blocks into 5 different places makes your project messy, hard to read, and difficult to fix when there's a bug!
With My Blocks (Clean Code)
Define the action ONCE under a pink define [Jump] hat block, then call Jump anywhere!
⭐ The DRY Principle
Professional programmers follow DRY (Don't Repeat Yourself). If you use a script more than once, turn it into a function!
Interactive Custom Block Creator
Scratch Custom Block Builder
Live GeneratorGenerated Scratch Blocks:
define [Jump (height)]
change y by (height)
Block in Palette:
Jump50