Click the "Select File" button above, and choose your SMMX file.
You’ll see a preview, if available.
Click the "Convert file to..." button to extract text information.
Convert SMMX to another file type
To convert SMMX mind maps to another format, you need SimpleMind or other Data software.
Convert a file to SMMX
To convert other file formats to the "Visual Diagram" file type, you need software like SimpleMind or a similar tool.
About SMMX files
The .SMMX file extension is the native format for SimpleMind, a popular cross-platform mind mapping tool developed by SimpleApps. These files function as compressed containers (often ZIP-based) that store the visual hierarchy of a mind map, including topics, branches, notes, icons, and embedded images. While highly efficient for organizing thoughts within the SimpleMind ecosystem, .SMMX files are proprietary and present a significant barrier to sharing; a recipient cannot view the map without installing the SimpleMind app (Free or Pro versions) on their device. They are not natively supported by web browsers, Microsoft Word, or standard image viewers. For professional sharing, archiving, or printing, users typically need to convert these files into universally accessible formats. For static viewing, PDF and PNG are the best targets. For migrating data to other mind mapping software (like MindManager or FreeMind), converting to OPML or MM is recommended to preserve the text structure.
Convert.Guru analyzes your SMMX file, detects the exact format, and lets you read the text inside.
Users also converted SM2STORE, SMX, BTW, MMAP, EMMX and MMP files.
FAQ
If you want to convert SMMX file to INDD, QXP, PUB, PMD, PM6, PM7, PM8, PM9, PM10, PM11, OMP or P65, you can use SimpleMind or similar software from the "Mind Map Document" category. In the File menu, look for Save As… or Export….
To convert MDI, PUB, PDP, PM4, P65, COMIC, WEBTEMPLATE, PMD, SPUB, INDD, PM5 or QXP files to SMMX, try SimpleMind or another comparable tool in the "Mind Map Document" category.
The SMMX 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 SMMX converter.