UI File - opening and understanding

Did your computer fail to open an UI file? We explain what they are used for and recommend software that we know can open or otherwise handle your .UI files.

What is an UI file?

An .UI file is a Qt User Interface file. Through our analysis of UI files, we know that one use of the format is Qt User Interface. We have not yet described in detail what these files contain and what they are used for, but our team is working tiredlessly through thousands of file formats. We'd love hearing from you if you have information about the format.

How to open UI files

You will need a program compatible with the specific file you are trying to open, as different programs may use files with file extension UI for different purposes.

While we have not verified the apps ourselves yet, our users have suggested 9 different UI openers which you will find listed below.

Other file formats using extension .UI

While Qt User Interface is a popular type of UI-file, we know of 2 different uses of the .UI extension.

The UI file extension indicates to your device which app can open the file. However, different apps may use the same file extension for different types of data. So an UI opener may not be able to open all kinds of UI files. In this case, look through both formats to make sure you find the best suited UI viewer.

Sprint User Interface

Through our analysis of UI files, we know that one use of the format is Sprint User Interface. We have not yet described in detail what these files contain and what they are used for, but our team is working tiredlessly through thousands of file formats. We'd love hearing from you if you have information about the format.

While we have not verified the apps ourselves yet, our users have suggested 9 different UI openers which you will find listed below.

Various viewers for this file format

These apps are known to open certain types of UI files. Remember, different programs may use UI files for different purposes, so you may need to try out a few of them to be able to open your specific file.

UltraISO PremiumUltraISO PremiumUser submitted
Python - PyQt4Python - PyQt4User submitted
Qt DesignerQt DesignerUser submitted
UltraISO Trava79 EditionUltraISO Trava79 EditionUser submitted
UltraISO Premium EditionUltraISO Premium EditionUser submitted
WinCDEmuWinCDEmuUser submitted
UltraISOUltraISOUser submitted
UltraISO Media EditionUltraISO Media EditionUser submitted
CopperCopperUser submitted
We have not verified any software that we know for certain will work with UI-files on Mac. If you know one, please use the 'Suggest a program' link below and tell us about it!
We have not verified any web services that we know for certain will work with UI-files. If you know one, please use the 'Suggest a program' link below and tell us about it!