Click the "Select File" button above, and choose your MMS file.
You’ll see a preview, if available.
Click the "Convert file to..." button to extract text information.
Convert MMS to another file type
To convert MMS messages to another format, you need MMS Viewer or other Data software.
Convert a file to MMS
To convert other file formats to the "Mobile Multimedia Message" file type, you need software like MMS Viewer or a similar tool.
About MMS files
An .MMS file generally contains a Multimedia Messaging Service message, standardized by the 3GPP or Open Mobile Alliance (OMA). These files hold text, images, audio, and video sent between mobile devices, often structured using SMIL (Synchronized Multimedia Integration Language). Alternatively, a significant portion of .MMS files are Civil 3D surface data files used by Autodesk Civil 3D to store massive terrain models that exceed the typical limitations of standard DWG files. They can also represent Map Markup Streams from Bentley MicroStation or IBM Transformation Extender Maps.
The primary disadvantage of an .MMS message file is its encoded, multi-part structure (often in Protocol Data Unit or PDU format). Standard desktop operating systems and web browsers cannot natively open them, meaning users cannot easily read their archived mobile texts without third-party tools. Similarly, Civil 3D .MMS files are heavily proprietary, strictly linked to a companion DWG file, can easily exceed 100MB, and require an expensive software subscription to open.
If dealing with an exported mobile message, you must convert or extract the contents into standard formats like JPG for images, MP4 for video, or TXT for the message body to ensure long-term accessibility. For CAD users, converting to a lighter DWG or DXF is often preferred to share data, though complex surface data may be simplified or lost during this process.
These files are notoriously difficult to process because they lack a single universal standard; an .MMS might be a telecommunications binary or a massive ZIP-compressed surface topography. Standard online converters fail to process them because they cannot parse the underlying proprietary headers or multi-part wrappers. Even if the wrapper is a closed format, our analysis often detects the underlying embedded data, making viewing or extraction realistic.
Convert.Guru analyzes your MMS file, detects the exact format, and lets you read the text inside.
If you want to convert MMS file to SMS, CMS, RCS, TEXT, MP3, WAV, AAC, FLAC, OGG, WMA, M4A or AIFF, you can use MMS Viewer or similar software from the "Multimedia Message 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 MMS, try MMS Viewer or another comparable tool in the "Multimedia Message Storage" category.
The MMS 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 MMS converter.