Are you looking to convert a ZIP file to an SB3 file? Perhaps you're a Scratch user who wants to import a ZIP archive of images, sounds, or other media into your project. Whatever your reason, this article will walk you through the process of converting a ZIP file to SB3.
If you’d like, I can:
But here is the open secret of the Scratch ecosystem:
To open this project back up in Scratch, you must convert that .zip file back into an .sb3 file. This comprehensive guide will explain exactly what these files are and how to convert them safely using multiple methods. Understanding the Relationship Between ZIP and SB3 convert zip to sb3
, though this may fail to load associated images or sounds if they are not already on the server. Helpful Related Tools TurboWarp Packager : Useful for converting files into standalone executable applications like Scratch SB/SB2/SB3 Viewer
: Right-click the file and select Rename . Change the .zip part to .sb3 .
If you want to dive deeper into configuring your files, let me know: What are you currently using? Did you get an error message when trying to load the file? Are you trying to batch convert multiple files at once? Are you looking to convert a ZIP file to an SB3 file
If you have extracted a project and only want to edit the code, you can sometimes upload the project.json file directly into the Scratch Editor
This comprehensive guide will explain exactly what these files are, why you might need to convert a ZIP back to an SB3, and the exact steps to do it on different operating systems without breaking your project. Understanding SB3 and ZIP Files
Useful if the ZIP was originally a "packaged" project (e.g., from an HTML or EXE conversion) and you need to get it back into a standard Scratch format. Why "Convert" ZIP to SB3? If you’d like, I can: But here is
If you unzipped an SB3, edited its internal files, and want to rebuild a valid SB3:
Right-click (or Control-click) the file and choose . Under the Name & Extension tab, delete zip and type sb3 . Press Return .
Before you start, you must verify that the ZIP file contains the proper internal structure of a Scratch project. Use a program like WinRAR or 7-Zip (or your operating system's built-in extraction tool) to open the ZIP file without extracting it. Look for a file named project.json at the root level. If you see other folders or files directly inside the ZIP without a project.json file at the root, the conversion may fail, and you may need to repackage the files correctly (as outlined in the next section).
The extension is the standard format used by Scratch 3.0 . Internally, these files are structured as ZIP archives that hold: