Select the file and press the key on your keyboard to edit the name. Replace the .zip extension at the end with .sb3 . Press Return .
: Individual files for sprites, backgrounds, and sounds, often named with long strings of characters. Advanced Conversion Workflows
There are several methods to convert ZIP to SB3, and we'll cover them all in this article.
unzip input.zip -d output
Launch your web browser and go to the official Scratch MIT Website. Click on to open a new, blank editor project. In the top menu bar, click on File . Select Load from your computer .
Notes:
Delete .zip from the end of the filename and replace it with .sb3 (e.g., my_project.sb3 ). convert zip to sb3
If you have a ZIP file containing the necessary Scratch assets (like project.json
If you want to debug a specific project that is failing to load, let me know you see or which text editor you used to modify the internal files. Share public link
For a fast, direct, and private conversion, using a browser-based tool like is the best approach. It operates entirely within your browser, ensuring your file data never leaves your device and is not uploaded to any external server. Select the file and press the key on
: A tool to convert Scratch projects into readable JavaScript code. internal file structure required for a Scratch project to run correctly? How can I directly modify a .sb3 file? - Discuss Scratch
If you don't have Scratch installed on your computer, you can use online conversion tools to convert ZIP to SB3. Here are a few options: