Click the "Select File" button above, and choose your UML file.
You’ll see a preview, if available.
Click the "Convert file to..." button to extract text information.
Convert UML to another file type
To convert UML diagrams to another format, you need StarUML or other Developer software.
Convert a file to UML
To convert other file formats to the "UML Diagram File" file type, you need software like StarUML or a similar tool.
About UML files
The .UML file extension primarily contains a Unified Modeling Language diagram. These files store visual models of software architecture, such as class, use case, and sequence diagrams. They are heavily utilized by software engineers and system architects. The format is typically based on the OMG UML/XMI standard using XML, or it is written as plain text source code for tools like PlantUML. To open or edit these files natively, you need specialized modeling software like StarUML or an IDE like Eclipse.
The primary disadvantage of the .UML format is its lack of portability. These files cannot be opened by standard image viewers, web browsers, or office suites. If you send a .UML file to a non-technical stakeholder, such as a project manager or client, they will likely just see raw, unreadable XML code. Furthermore, heavy modeling software often requires paid licenses or complex installations.
To share these diagrams easily, you must convert the .UML file. For web use and infinite scaling, convert to SVG. For embedding in reports or emails, convert to PNG or JPG. For strict archiving and printing, convert to PDF/A. Drag and drop your file here to analyze and convert it - free, online, and without installing software.
Convert.Guru analyzes your UML file, detects the exact format, and lets you read the text inside.
If you want to convert UML file to IMAGE, PDF, CODE, PNG, DRAWIO, JS, TS, PY, JAVA, CPP, C or CS, you can use StarUML or similar software from the "Software Architecture Modeling" 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 UML, try StarUML or another comparable tool in the "Software Architecture Modeling" category.
The UML 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 UML converter.