– The renamed file should open directly in Scratch 3.0 (offline editor or online via File > Load from your computer).
The conversion process involves renaming the file extension and ensuring the MIME type is recognized by the Scratch platform. zip to sb3
– The ZIP must contain the Scratch project’s internal files, including project.json and the assets/ folder (with costumes, sounds, etc.). – The renamed file should open directly in Scratch 3
: Your operating system (Windows or macOS) will likely warn you that changing the extension might make the file unusable. Select Yes or Use .sb3 . zip to sb3
Convert ZIP to SB3