Converter — Zip To Sb3

If your goal is to make your project playable as a standalone app rather than just a Scratch file:

A is a utility designed to package the assets of a Scratch project (images, sounds, and code) back into a single .sb3 file format. Since .sb3 files are actually renamed ZIP archives, these converters often focus on ensuring the internal structure is correct so Scratch can read it. Zip To Sb3 Converter