Extract text from MDJ files
To convert your MDJ file to another format, you need StarUML or other Developer software.
To convert other file formats to the "UML Modeling Project" file type, you need software like StarUML or a similar tool.
The .mdj file extension represents a StarUML Model Project, the native file format for StarUML. These files contain comprehensive Unified Modeling Language (UML) data - such as class diagrams, flowcharts, and entity-relationship models - stored in a standard JSON structure. While the underlying data is human-readable text, the file itself is a "blueprint" that requires specific rendering logic to visualize the diagrams.
Users typically need to convert .mdj files because they are proprietary project files, not shareable images. Sending a .mdj file to a client or stakeholder often results in confusion, as they cannot open it without purchasing or installing StarUML. Furthermore, generic "online converters" often confuse .mdj with md (Markdown), leading to failed conversions. To share your work, the best practice is converting the visual diagrams to PDF for documentation or PNG/SVG for web embedding, while keeping the .mdj file for editing.
Convert.Guru analyzes your MDJ file, detects the exact format, and lets you read the text inside.
Users also converted UML, MFJ, JPG, TXT, PDF, PNG, ZIP, ASPX, IPYNB, MJD, MD, SDOCX and DIA files.
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 MDJ converter.