Scratch SB2 and SB3 Project Viewer

Explore the stage, sprites, scripts or blocks, variables, costumes and sounds in a Scratch project. The readable summary links asset paths within the uploaded archive and notes missing references.

Drop your .sb2 or .sb3 file here
Choose file

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Browse metadata, source and assets

Processing runs on our servers. Upload a package to browse its extracted files and readable format report, inspect partial results, download individual files or download the complete result ZIP. Extraction and supplied source viewing are identified separately from bytecode recovery.

SCRATCH-SUMMARY.txt
scratch.json
files/project.json
files/example.svg
files/example.wav

Supported variants and limits

This views supplied Scratch 2/3 project source and assets. It does not execute the project or provide a visual block editor. Scratch 1 SB files are outside this support. External asset references are never fetched.

Shared defaults are five minutes per job, 1 GiB expanded data, 256 MiB per member, 25,000 entries and four nested layers. Metadata reads are bounded to 4 MiB. Each nested compression or container layer shares these limits. Larger or damaged inputs can produce partial results; DECOMPILATION-NOTES.txt and extraction.json explain skipped files and recovery outcomes.

Related inspectors: DEB, RPM, macOS PKG, MCPACK, MCADDON, MCWORLD and MCTEMPLATE, Scratch, App Inventor and Unity packages.

For Unity runtime .assets, .bundle, .assetbundle or .unity3d files, use the Unity runtime asset extractor. For compiled applications, use the Java decompiler or APK decompiler.