Convert Zip To Sb3
Try converting your first ZIP file today. Download any Scratch project from GitHub (look for .sb3 but sometimes delivered as .zip ), rename it, and watch it come alive in the Scratch editor.
Ensure your file isn't accidentally named project.sb3.zip . Turn on file extensions in your operating system settings to see the true hidden extension.
A warning will pop up saying, "If you change a file name extension, the file might become unusable." Click or Use .sb3 . convert zip to sb3
// Load your project assets const project = new sb3.Project();
If you have a standard Scratch project that has been saved as a ZIP file, this method will often work immediately, making it the simplest option. If this fails, you can proceed with the more direct conversion methods below. Try converting your first ZIP file today
| Feature | SB3 File | ZIP File | | :--- | :--- | :--- | | | Scratch 3.0 project file | General-purpose archive for compressing and storing any file(s) | | File Structure | A ZIP archive containing project.json and assets | A ZIP archive containing any files and folders | | Key Requirement | Must contain a valid project.json at the archive root | No specific internal structure required | | Extension | .sb3 | .zip | | Renaming | Can be renamed to .zip and opened with any archive tool | Can be renamed to .sb3 , but will only be valid if it contains a proper Scratch project structure |
If you unzipped a Scratch project, edited the project.json file or changed some costumes, and now want to turn it back into an .sb3 file, follow these steps. Turn on file extensions in your operating system
// Add sprites, code, etc. // ... (your project building logic here)
Mac users can use the native Finder utility, but need to be careful with hidden system files. Open the folder containing your Scratch assets.