YOSHI'S WOOLLY WORLD · MODDING WORKSPACE

Unravel your GFA archives.

Extract and rebuild Good-Feel archives right in your browser. The archive engine is compiled from Rust to WebAssembly; your files stay on your device.

First-time setup The WebAssembly engine has to be built by GitHub Actions before the tools become active. Follow the setup steps in the project README, then reload your Pages site.

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ARCHIVE TO FILES

Extract a GFA

Choose a .gfa archive. WoollyTools will unpack its files and bundle them into a ZIP download.

↑Choose a GFA archiveClick to select a .gfa file

No archive selected

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FILES TO ARCHIVE

Create a GFA

Select a folder of extracted game files and rebuild it as a Good-Feel archive.

＋Choose an extracted folderFolder structure and filenames are preserved

No folder selected

GfArch version Compression Use Yoshi's Woolly World GFCP offset (0x2000)

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BFRES TO FILES

Extract a BFRES

Extract indexed BFRES files and package them into a ZIP. FTEX textures are included as GTX and PNG files.

↑Choose a BFRES archiveClick to select an uncompressed .bfres file

No archive selected

Model data is exported raw; full 3D mesh reconstruction is not included.

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GTX TO PNG

Extract a GTX

Decode supported Wii U GTX texture formats and download the images as PNG files.

↑Choose a GTX textureClick to select a .gtx file

No texture selected

Uses the supplied GTX Extractor in your browser. First use downloads the Python runtime; your texture stays on your device.

Local processing

Files are read and processed in your browser. They are not uploaded to a server.

Rust-powered

Uses the gfarch Rust library that powers Tangle's GFA handling.

Made for modding

Start with extraction and repacking. More Yoshi-specific editors can come later.