Click the "Select File" button above, and choose your GMI file.
You’ll see a preview, if available.
Click the "Convert file to..." button to extract text information.
Convert GMI to another file type
To convert GMI game files to another format, you need Knight Online or Powel Gemini or other Game software.
Convert a file to GMI
To convert other file formats to the "Proprietary Game UI Image" file type, you need software like Knight Online or Powel Gemini or a similar tool.
About GMI files
The .gmi file extension is most commonly associated with Knight Online, an MMORPG developed by MGame. In this context, it functions as a proprietary game user interface image file. These files store graphical assets used within the game's UI. Because they use a closed, game-specific encoding, standard image viewers like Photoshop or Windows Photos cannot open them. Alternatively, .gmi files are used by Powel Gemini software (now part of Volue) as a surveying and infrastructure data file. These files store complex geospatial data, terrain models, and pipe networks for Gemini VA. Sharing this data is difficult because recipients require an expensive, specialized GIS or CAD license to view it. Finally, a small percentage of .gmi files represent Gemtext Documents, a lightweight markup language created by Solderpunk for the Gemini internet protocol. Gemtext requires specialized browsers like Lagrange to render properly. Users often need to convert .gmi game images to standard raster formats like PNG or JPG for modding or web use. Gemini geospatial data is typically exported to DXF, DWG, or SHP for cross-platform CAD compatibility. Gemtext is best converted to MD (Markdown) or TXT for general readability. Because .gmi encompasses highly proprietary formats, it is often difficult to open or convert outside of the original software. Standard online converters typically fail to process these files. Emphasize that often only the original software can properly read or export the data. Even if the format is locked, our analysis can inspect the internal content, show raw text, and detect underlying embedded formats for potential viewing.
Convert.Guru analyzes your GMI file, detects the exact format, and lets you read the text inside.
If you want to convert GMI file to HTML, HTM, CSS, JS, PHP, ASP, ASPX, JSP, JSPX, PY, RB or PL, you can use Knight Online or Powel Gemini or similar software from the "Game UI Image / Data" category. In the File menu, look for Save As… or Export….
To convert RSS, CSS, CGI, SITEMAP, PL, WEBMANIFEST, JSON, JS, XML, HTML, ICO or HTM files to GMI, try Knight Online or Powel Gemini or another comparable tool in the "Game UI Image / Data" category.
The GMI 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 GMI converter.