Scratch.js – Interactive JavaScript Scratchpad

In plain words

Scratch.js is an interactive JavaScript scratchpad that lets users write and test JavaScript code directly in their browser. It's designed for developers and learners who want to experiment with code snippets quickly without setting up a local environment. The tool provides immediate feedback on code execution, making it useful for testing ideas, learning JavaScript syntax, or debugging small pieces of code.

written from the facts on this page · September 2026

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