Nintendo Wii backup file system data
File type: Backup file
A .wbfs file is a backup of a Nintendo Wii game disc stored in the Wii Backup File System (WBFS) format.
It is used with Wii backup loaders and management tools to store and use Wii game backups.
File type category:
Backup file
Date updated: October 17, 2026
The WBFS format is associated with the Nintendo Wii and was initially implemented by Waninkoko for USB backup loaders.
A .wbfs file contains Wii game backup data in a format designed for storage on USB devices and use by compatible loaders. It is a game image rather than a general-purpose document.
Wii Backup Fusion is available for multiple platforms. Wii Backup Manager, Wii Unscrambler, and Wiimms WBFS Tool are available for Microsoft Windows. These programs manage WBFS backups and related Wii disc-image data; the format remains associated with Wii homebrew backup tools.
Use a compatible Wii USB backup loader to use a .wbfs file on a Nintendo Wii. On a computer, Wii Backup Fusion can manage and restore the file on multiple platforms, while Wii Backup Manager, Wii Unscrambler, and Wiimms WBFS Tool can manage or inspect it on Microsoft Windows.
The file is not normally opened as a document. The appropriate program can list its game information, copy it to supported storage, or prepare it for use with a compatible loader.
Wii backup tools can convert a .wbfs file to an ISO image, and can convert a compatible Wii ISO image to WBFS format. Wii Backup Fusion, Wii Backup Manager, and Wiimms WBFS Tool provide relevant backup-management functions.
This conversion repackages Wii game backup data for different storage or loading methods; it does not convert the game into a standard video, archive, or document format.
Software applications that can open wbfs files:
Microsoft Windows
Software apps that create wbfs files:
Microsoft Windows
Multiplatform
Software apps that convert wbfs files:
Multiplatform
Software apps that import wbfs files:
Microsoft Windows
Software apps that export wbfs files:
Microsoft Windows
Software apps that backup wbfs files:
Other operating systems or devices
Software apps that recover wbfs files:
Microsoft Windows
Multiplatform
Software applications that handle other tasks involving wbfs files:
Microsoft Windows
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