Convert Zip To Sb3 Updated Jun 2026

unzip -l converted_file.sb3 | grep project.json

To convert a file to an (Scratch 3.0 project) file, you primarily need to change the file extension. This works because an file is essentially a renamed ZIP archive containing a project.json file and various asset files (images and sounds). Step-by-Step Conversion Prepare the ZIP convert zip to sb3 updated

Sometimes you download a ZIP file that, when opened, reveals a folder full of individual assets ( project.json , sound files, image files). This happens when someone unzipped a Scratch project before sharing it. You cannot simply rename this folder – you must re-compress it correctly. unzip -l converted_file

This appears for .sb (Scratch 1.4) or .sb2 (Scratch 2.0) files incorrectly labeled as ZIP. You need a dedicated SB2 to SB3 converter (e.g., Scratch’s built-in converter or phidars online tool). This happens when someone unzipped a Scratch project

: Right-click your file (e.g., project.zip ) and select Rename . Change the .zip suffix to .sb3 .

You may need to convert a ZIP file to SB3 if you have a Scratch project saved as a ZIP file and want to: