The "brain" of your project containing all the code and logic. SVG/PNG files: Your costumes and backdrops. WAV/MP3 files: Your sound effects and music. Why do I have a ZIP instead of an SB3?
In 90% of cases, you don’t need a converter tool. You simply need to tell your computer to treat the ZIP as an SB3. Locate your ZIP file on your computer. the file and select Rename . convert zip to sb3
If you are on a mobile device (like an iPad or Chromebook) where renaming file extensions is difficult, online tools can help. The "brain" of your project containing all the
Open the Scratch Online Editor , go to , and select your new file. Method 2: Re-Zipping Extracted Files Why do I have a ZIP instead of an SB3
Usually, this happens because a computer or browser "unzipped" the project automatically, or a user manually changed the extension to .zip to look at the code. Because SB3 files use ZIP compression, computers often treat them as interchangeable—but the Scratch editor only recognizes the .sb3 extension. Method 1: The Quick Rename (Easiest)
Converting ZIP to SB3 is less about "converting" and more about "relabeling." Because an SB3 file is a ZIP file, a simple name change is usually all it takes to get back to coding your masterpiece.