In 2026, a growing number of educators use AI assistants (like ChatGPT with coding plugins or specialized Scratch AI tools) to generate .sb3 files. These AIs sometimes output a .zip archive containing the project.json and assets because web APIs handle ZIPs more easily than binary file transfers.
For each sprite, she created a checklist: convert zip to sb3 updated
If your ZIP file came from a "packaged" Scratch project (like an In 2026, a growing number of educators use
The most direct way to "convert" is by changing the file extension. Scratch 3.0 projects are saved as archives, so if you have a valid Scratch project structure inside a ZIP, follow these steps: follow these steps: