Click the "Select File" button above, and choose your GDM file.
You’ll see a preview, if available.
Click the "Convert file to..." button to extract text information.
Convert GDM to another file type
To convert your GDM file to another format, you need GIANTS Editor or other Game software.
Convert a file to GDM
To convert other file formats to the "Terrain Data Map" file type, you need software like GIANTS Editor or a similar tool.
About GDM files
GDM files, commonly associated with the Bells, Whistles, and Sound Boards (BWSB) audio format, are a type of module file that stores music data. These files are less popular today due to the rise of more advanced audio formats. Despite this, you may still encounter GDM files, especially if you're dealing with retro or niche digital music compositions.
Converting GDM files can be challenging due to their unique structure and limited compatibility with modern software. However, software such as OpenMPT and VGMPlay can be used to open and export GDM files to more commonly used formats like MP3, WAV, and FLAC. While these tools are effective, they may require a learning curve and technical understanding to use effectively.
When converting GDM files, it's important to consider the potential loss of quality or the alteration of audio characteristics. This can occur because GDM files often contain specific audio effects and settings that may not translate perfectly to another format. Furthermore, the lack of metadata support in GDM files can lead to missing information post-conversion.
While using desktop software is an option, it can be cumbersome and time-consuming for those less familiar with file conversion processes. This is why we recommend using the free and user-friendly website, Convert.Guru. Simply drag and drop your GDM files onto the page, and effortlessly convert them to a wide range of formats. This method is not only convenient but also ensures a reliable conversion process without the need for technical expertise.
Convert.Guru analyzes your GDM file, detects the exact format, and lets you read the text inside.
If you want to convert GDM file to PNG, MP3, WAV, AAC, FLAC, OGG, WMA, M4A, AIFF, OPUS, ALAC or APE, you can use GIANTS Editor or similar software from the "Terrain Density Storage" category. In the File menu, look for Save As… or Export….
To convert MIDI, AAC, TTA, AU, WV, DTS, MID, FLAC, RA, MP3, PCM or WAV files to GDM, try GIANTS Editor or another comparable tool in the "Terrain Density Storage" category.
The GDM 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 GDM converter.