Here’s a clean, practical feature idea for — aimed at a tool or extension that repairs and converts Scratch project zip files into usable .sb3 files.
: If you cannot see the .zip or .sb3 letters, you must enable file extensions in your computer's operating system settings first. convert zip to sb3 fix
Last updated: October 2025. This guide addresses Scratch 3.0 file specifications and common OS behaviors. “Convert ZIP to SB3 Fix” Here’s a clean,
Ensure all your assets (the JSON file and all media) are in the of the ZIP folder. They should not be inside a sub-folder within the ZIP, or Scratch won't be able to find them. 2. Change the Extension This guide addresses Scratch 3
If your ZIP file doesn't contain a file named project.json , it isn't a Scratch project. You cannot simply turn a folder of random images and sounds into an .sb3 without the JSON file that tells Scratch how to use them. 2. Double Extensions