If you have a Scratch project that was mistakenly compressed into a .zip format, or if you have manually edited project files and need to package them back up, this guide will show you exactly how to convert your ZIP file back into a functional SB3 file. Understanding ZIP and SB3 Files
Never upload proprietary or sensitive projects to unknown online tools. For school or work projects, use the manual methods.
: Open the Scratch editor and go to File > Load from your computer to open the new .sb3 file. Method 2: Manual Packing (When You Have Unzipped Assets) convert zip to sb3
Converting a file to an SB3 format is essentially just a matter of renaming the file extension , as SB3 files are actually compressed ZIP archives containing Scratch 3.0 project data. Why Convert ZIP to SB3?
Converting a file to an (Scratch 3.0 project) file is a simple process because an file is essentially a renamed Direct Conversion Method If you have a Scratch project that was
Right-click (or Control-click) the file and select Get Info .
Close the Info window. When prompted to confirm the change, click . On ChromeOS / Chromebooks Open the Files app. Locate the .zip file and select it. Press Ctrl + Enter to rename the file. Replace .zip at the end of the filename with .sb3 . Press Enter to save the changes. Method 2: Re-archiving Internal Assets (For Extracted ZIPs) : Open the Scratch editor and go to
You or a student accidentally extracted a downloaded Scratch project and need to restore it to its original format so the Scratch offline editor can read it.
If you have a Scratch project that was mistakenly compressed into a .zip format, or if you have manually edited project files and need to package them back up, this guide will show you exactly how to convert your ZIP file back into a functional SB3 file. Understanding ZIP and SB3 Files
Never upload proprietary or sensitive projects to unknown online tools. For school or work projects, use the manual methods.
: Open the Scratch editor and go to File > Load from your computer to open the new .sb3 file. Method 2: Manual Packing (When You Have Unzipped Assets)
Converting a file to an SB3 format is essentially just a matter of renaming the file extension , as SB3 files are actually compressed ZIP archives containing Scratch 3.0 project data. Why Convert ZIP to SB3?
Converting a file to an (Scratch 3.0 project) file is a simple process because an file is essentially a renamed Direct Conversion Method
Right-click (or Control-click) the file and select Get Info .
Close the Info window. When prompted to confirm the change, click . On ChromeOS / Chromebooks Open the Files app. Locate the .zip file and select it. Press Ctrl + Enter to rename the file. Replace .zip at the end of the filename with .sb3 . Press Enter to save the changes. Method 2: Re-archiving Internal Assets (For Extracted ZIPs)
You or a student accidentally extracted a downloaded Scratch project and need to restore it to its original format so the Scratch offline editor can read it.