: Converts SB3 or ZIP projects into HTML, EXE (Windows), or specialized app formats. Unpackager
⚠️ Do not double-extract the file. If you already unzipped it into a folder, you must re-zip the contents correctly (see Method 3).
An SB3 file is a file format used by Scratch 3.0, a popular programming environment developed by MIT. SB3 files contain Scratch projects, which include code, sprites, and other project assets.