Extract text from game data files (GMD)
To convert GMD game files to another format, you need GameMaker or other Game software.
To convert other file formats to the "Game Data Archive" file type, you need software like GameMaker or a similar tool.
The .GMD file extension primarily acts as a container for proprietary game data. It serves completely unrelated purposes depending on the exact software that created it. Most frequently, it stores 3D models, textures, and scene data for console games developed by Capcom (using the MT Framework engine), Ryu Ga Gotoku Studio (the Yakuza series), and Atlus (the Persona series). Alternatively, .GMD files function as XML-based level data files for Geometry Dash, legacy project files for GameMaker, or even proprietary video recordings exported from Bettini XNG DVR surveillance systems.
The core disadvantage of the .GMD format is its fragmented, proprietary design. Because multiple distinct developers use the same extension for drastically different data structures, your computer has no idea how to open it. Game model files are permanently locked to their specific rendering engines, meaning you cannot easily open them in standard 3D software. DVR video versions require obscure, manufacturer-specific player software just to view the footage. Standard online converters almost always fail to process .GMD files because they lack the specific, reverse-engineered algorithms required for each variant.
If you want to use the contents of a .GMD file, conversion is mandatory. For 3D models, the best target formats are OBJ or FBX. For DVR surveillance footage, you must convert it to a standard MP4 or AVI to play it on modern web browsers or phones.
This file format is extremely difficult to open or convert manually. Often, only the original software or specialized community modding scripts can properly read or export the 3D data. If our analysis detects a supported underlying or embedded format - like a ZIP archive in GameMaker files or plain XML in Geometry Dash levels - viewing or conversion may still be possible.
Convert.Guru analyzes your GMD file, detects the exact format, and lets you read the text inside.
Users also converted JSON, DMG, XML, JPG, GEX, A1, GMK and CFA files.
If you want to convert GMD file to CFA, JS, TS, PY, JAVA, CPP, C, CS, PHP, RB, GO or RS, you can use GameMaker or similar software from the "Proprietary Game Data Storage" category. In the File menu, look for Save As… or Export….
To convert SH, PY, KT, PS1, SWIFT, LUA, PL, JAVA, SCALA, JS, VBS or TS files to GMD, try GameMaker or another comparable tool in the "Proprietary Game Data Storage" category.
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 GMD converter.