“Unable to load project” or infinite loading. Fix: Ensure project.json is at the archive’s root, not inside a subfolder. Unzip, rearrange, and re-zip using Method 2.
: To go the other direction (from SB3 to a ZIP containing an executable), use the TurboWarp Packager . Troubleshooting Common Errors convert zip to sb3
| From | To | Method | |------------|-------|-------------------------------| | .zip | .sb3 | Rename file extension | | Unzipped folder | .sb3 | Zip contents → rename to .sb3 | “Unable to load project” or infinite loading
The phrase is somewhat misleading. Since SB3 files are ZIP archives under the hood, the process is as simple as ensuring correct internal structure and renaming the file extension . not inside a subfolder. Unzip