Zip To Sb3 Converter (2026)

containing the project.json and assets. Right-click the file and select "Rename." Change the end of the filename from .zip to .sb3 . A warning will appear asking if you’re sure; click Yes .

// Write out as new SB3 (which is still a zip) const newSb3 = new AdmZip(); entries.forEach(entry => if (!entry.entryName.includes('MACOSX')) newSb3.addFile(entry.entryName, entry.getData());

A project.json file containing all the code, blocks, and variables. Zip To Sb3 Converter

ezyZip is a standout online tool that operates entirely within your browser. Unlike many online converters that require uploading files to a server, ezyZip uses your computer's own processing power to handle the conversion. This means no file data ever leaves your browser—you can even turn off your WiFi during the process, and it will continue working.

Note: If you don't see the extension, enable "File name extensions" in your folder view settings. containing the project

To add hidden blocks:

: Developers often rename an .sb3 to .zip to extract the images or sounds, edit them in external software (like Photoshop or Audacity), and pack them back into a ZIP. // Write out as new SB3 (which is

This method works on any operating system that runs a modern browser: Windows, macOS, Linux, Android, ChromeOS, and even iOS (iPhone, iPad, and iPod Touch).