Your project loads, but the stage is empty, or sprites have disappeared.
All assets (sounds/images) are in the root directory of the ZIP. File name extensions are visible on your computer. The file ends strictly in .sb3 and not .sb3.zip .
Scratch is a fantastic platform for creating games, animations, and interactive stories. However, creators often face a frustrating issue: a project suddenly refuses to open, throwing an error or loading an empty stage. convert zip to sb3 fix
project.json : A text file containing all the code, blocks, variables, and project structure.
Re-zip files from the inside of the folder, not the folder itself. Ensure the project.json file is present and not corrupted. File stays a ZIP Your project loads, but the stage is empty,
If you want to debug a specific project that still will not open, tell me:
In this guide, we will explain ZIP files masquerade as SB3 files, the exact steps to convert them correctly, and most importantly—the fixes for when the simple conversion goes wrong. The file ends strictly in
Open a browser and go to a free JSON validation tool (like JSONLint). Paste your code and click .
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How to Convert ZIP to SB3 (and Fix Common Errors) Scratch is an excellent platform for creating games, animations, and interactive stories. However, managing Scratch project files can sometimes be frustrating. If you have downloaded a Scratch project or compressed one yourself, you might end up with a .zip file instead of the native .sb3 format. Trying to upload this ZIP file directly to Scratch will result in an error.