Click the "Select File" button above, and choose your OZJ file.
You’ll see a preview, if available.
Click the "Convert file to..." button to extract text information.
Convert OZJ to another file type
To convert OZJ textures to another format, you need MU Online Client or other Game software.
Convert a file to OZJ
To convert other file formats to the "MMORPG Texture File" file type, you need software like MU Online Client or a similar tool.
About OZJ files
The .ozj file extension is a proprietary game asset texture format used almost exclusively in MU Online, a classic 3D MMORPG developed by Webzen. These files store the visual skins for 3D models, user interface elements, and environmental graphics used by the game engine. At its core, the internal image data is simply a standard JPG file, but it is encapsulated within a custom, obfuscated header designed to protect game assets. The primary disadvantage of the .ozj format is its severe artificial lock-in. Because it is a closed, proprietary wrapper, standard image viewers, web browsers, and professional editing software like Adobe Photoshop cannot open these files natively. This makes the files entirely useless outside the game client unless you are actively datamining or developing a private server. Modders and developers are forced to convert .ozj files into standard image formats like JPG, PNG, or BMP to view or modify the textures. Standard online image converters almost always fail to process .ozj files because they rely on standard magic numbers and crash when encountering Webzen's custom header. This is where specialized extraction is required. Just drag and drop your .ozj file into convert.guru to identify the format, view its internal structure, and convert it when possible. Because our tools analyze the raw hex data, we can often bypass the proprietary wrapper, detect the underlying JPEG payload, and extract the image for you without requiring sketchy third-party modding tools.
Convert.Guru analyzes your OZJ file, detects the exact format, and lets you read the text inside.
If you want to convert OZJ file to , you can use MU Online Client or similar software from the "Game Asset Texture Storage" category. In the File menu, look for Save As… or Export….
To convert files to OZJ, try MU Online Client or another comparable tool in the "Game Asset Texture Storage" category.
The OZJ 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 OZJ converter.