Because the structures are identical, the conversion process is theoretically simple. However, the "Extra Quality" aspect lies in the details.
If you are looking to maintain high quality during this "deep post" (modifying the file after it was a ZIP), consider these factors:
This usually means the project.json is missing or the internal file paths don't match the names of the assets in the ZIP.
For true control over , do not rely on automated web tools. Follow this manual process. zip to sb3 extra quality
Images (PNG, SVG) and sounds (WAV, MP3) used in the project.
Allows you to run SB3 files at 60 FPS and use high-quality pen rendering.
: Replace standard costumes with optimized SVG or high-quality PNG files. Crystal Clear Audio Because the structures are identical, the conversion process
The Scratch community is pushing for a formal . Proposed features include:
How to Convert Zip to SB3 Extra Quality: A Step-by-Step Guide
So, why would you want to convert a ZIP file to an SB3 file? The most common reason is to rebuild a Scratch project from its source files. You might also want to: For true control over , do not rely on automated web tools
: Ensure your SVG files are cleaned up and do not contain nested, non-standard XML tags. Use tools like SVGO to optimize them without losing visual fidelity.
If you don't see the extension, enable "File name extensions" in your operating system's view settings. 4. Verify in Scratch Scratch Editor Navigate to File > Load from your computer and select your new
