Scratch 3 Developer Tools

Scratch 3 Developer Tools to enhance your Scratch Editing Experience on https://scratch.mit.edu

Scratch 3 Developer Tools is a powerful Chrome and Firefox extension designed for serious Scratch coders seeking to improve their editing workflow on https://scratch.mit.edu. Created by the well-known Scratch community member Griffpatch, this tool offers seamless navigation to custom blocks, event receivers, and hat blocks within your Scratch projects. Features include a handy find box for quick block access, keyboard shortcuts for efficient navigation, and advanced script tidying that organizes your blocks better than the default Scratch tool.

Regular updates have enhanced the extension with bug fixes, improved help tutorials, keyboard navigation, context menu options like copy/paste and block cleanup, and variable management capabilities. Whether you're managing variables and lists or simply want a faster, cleaner way to edit Scratch projects, Scratch 3 Developer Tools elevates your coding efficiency and enjoyment. Visit Griffpatch's Scratch profile for more information and support.

User reviews



I enjoy most of it, but the searching really really sucks. It should be a TEXT search, not a variable name/list name/only some type of blocks thing. It should allow one to search for "set (variable) to ()" instead of just (variable name).
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Extension safety

Risk impact

Scratch 3 Developer Tools requires a few sensitive permissions. Exercise caution before installing.

Risk impact analysis details
  • High Injects scripts into web pages, which may alter or extract site contents, resulting in a substantial risk.
  • High ******* ****** ** *** ********* ******** ********************
Risk likelihood

Scratch 3 Developer Tools has earned a fairly good reputation and likely can be trusted.

Risk likelihood analysis details
  • High This extension has low user count. Unpopular extensions may not be stable or safe.
  • Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
  • Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
  • Good **** ********* *** **** **** *******
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