Click the "Select File" button above, and choose your WUD file.
You’ll see a preview, if available.
Click the "Convert file to..." button to extract text information.
Convert WUD to another file type
To convert your WUD file to another format, you need Cemu or other Disk Image software.
Convert a file to WUD
To convert other file formats to the "Wii U Game Dump" file type, you need software like Cemu or a similar tool.
About WUD files
WUD files are raw, uncompressed disc images dumped directly from Nintendo Wii U optical discs. While they provide a bit-for-bit backup of game media, their primary practical drawback is their immense and fixed file size. A standard single-layer Wii U disc dump is approximately 23.3 GB, and a dual-layer dump is roughly 46.6 GB, regardless of how much actual game data is on the disc. This means a simple 2 GB indie game will still occupy over 20 GB of hard drive space in .WUD format because the file includes all the empty padding and dummy data from the physical medium.
Due to this inefficiency, users rarely keep files in this state for long-term storage or emulation. The immediate solution is converting the .WUD file to the WUX (Wii U Compressed Image) format, which losslessly removes the empty padding, often reducing the file size by 80-90%. For users looking to play games on PC emulators like Cemu, the file may also need to be decrypted and extracted into raw system files (such as RPX, RPL, and content folders) or converted to simpler formats. Managing these files often requires specific decryption keys (common.key and the specific game.key) to be present in your keys file.
Convert.Guru analyzes your WUD file, detects the exact format, and lets you read the text inside.
If you want to convert WUD file to APP, WUX, ISO, IMG, DMG, VHD, VMDK, VDI, HDD, QCOW, QCOW2 or RAW, you can use Cemu or similar software from the "Wii U Game Storage" category. In the File menu, look for Save As… or Export….
To convert VFD, DMG, OVA, IMA, VBOX, ADF, PVS, VHD, OVF, ISO, DSK or IMG files to WUD, try Cemu or another comparable tool in the "Wii U Game Storage" category.
The WUD Converter Story
The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our WUD converter.