How to open UML files
Did your computer fail to open an UML file? We explain what UML files are and recommend software that we know can open or convert your UML files.
What is an UML file?
The UML file extension indicates to your device which app can open the file. However, different programs may use the UML file type for different types of data.
While we do not yet describe the UML file format and its common uses, we do know which programs are known to open these files, as we receive dozens of suggestions from users like yourself every day about specific file types and which programs they use to open them.
We are continually working on adding more file type descriptions to the site, so if you have information about UML files that you think will help others, please use the Update Info link below to submit it to us - we'd love to hear from you!
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Various UML openers
These apps are known to open certain types of UML files. Since many different programs may use UML files for different purposes, you may need to try a few of the apps to open your specific UML file.
 | StarUML | User submitted |
 | Java-Editor | User submitted |
Try a universal file viewer
Try a universal file viewer like Free File Viewer. It can open over 200 different types of files - and most likely yours too. Download Free File Viewer here.
Not sure exactly what type of file you are trying to open? Try our new File Analyzer. It is a free tool that can identify more than 11,000 different kinds of files - most likely yours too! It will help you find software that can handle your specific type of file. Download File Analyzer here.