Opening a QML File

The QML file type is primarily associated with Qt SDK.

QMLFile Extension QML
File extension: QML
File type:  user interface component

What is a QML file

QML files mostly belong to Qt SDK by Qt. A QML file is a user interface component written in Qt Modelling Language. A QML file contains user interface definitions, object declarations, and imported JavaScript resources. A user interface element written in QML can be compiled to native C++ code using Qt Quick framework's compiler. Another type of QML file contains financial data saved by some versions of Quicken personal finance software. QML is also the filename extension of a project created with QGIS geographic information system. The contents a QML project are written in Extensible Markup language.

How to open a QML file

You need a suitable software like Qt SDK to open a QML file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your QML file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a QML file directly in the browser:. Just drag the file onto this browser window and drop it.

Online QML Text Viewer

Choose your .qml file to view

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How to extract texts from QML files or capture a screenshot to PDF, JPG, DOCX, TXT, ...

If you want to extract texts from QML file or capture a screenshot, you can use our free Online QML File Viewer:
  1. To do this, click the button "Choose your .qml file to view" on this page.
  2. After your file is opened in browser,
  3. click "Save as..." in the menu.
  4. Then choose the file format (e.g. JPG, PDF, DOCX, TXT, ...) you want.
  5. Download the converted file.

Programs that open and convert QML files:

  1. Qt SDK by Qt
    See the previous paragraphs to learn more about the main application. QML files are often referred to as Qt SDK developers because this type of file is primarily created or used by this software.
  2. QGIS (project) by QGIS Development Team
    QGIS is an open source geographic information system used for geospatial data visualization/analysis. This program is available for Windows, Linux, macOS, and Android. It saves a project in a QML file. This file format is classified as GIS. Related links: QGIS Example XML Project File
  3. Quicken (financial data) by Quicken
    Quicken is a cross-platform personal finance software. Some versions of Quicken used a QML file to store financial data. This file format is classified as Data.

QML file format:

To view or edit QML files you need to know the file format, because it determines how the data in this file is stored. The file format can be deduced from the file extension and the signature. However, different programs can use the same file extension. Furthermore, a file extension can be renamed incorrectly and double-clicking on it will then display an error when it is opened. If there are problems opening a file, you must first determine the file format used. Below is our analysis of the QML files:

The QML file extension includes various formats for various programs. The two most popular formats are as follows:

All other QML files (50%) have no uniform format, such as Source, XML and import. Tagged as color, item, page, application, ofweek, table, drop or tree. You can get all the details of your QML file by dragging it onto this page or by clicking the button "Choose your .qml file to view" above.

Technical Data for QML File Extension

File classification:
Developer
Related files:
qmltypes, qmlc, qmldir, gml, zip, gpkg, txt, qm, qrc, qss
Related links:

The following listing is compiled from the database produced by the 'Associate This!' program, selected data from the main FILExt database and file extension information submitted by users.

ProgramID: qmlfile
EXEFile: %ProgramFiles%\quick macros 2\qm.exe


a qml user interface component is a special file format by Qt and should only be edited and saved with the appropriate software.

How to solve problems with QML files

  • Associate the QML file extension with the correct application.
  • Update your software that should actually open user interface components. Because only the current version supports the latest QML file format. Search, therefore, e.g. on the Qt manufacturer website after an available Qt SDK update.
  • To make sure that your QML file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
  • Click here to open your .QML file online - secure, fast, and no downloads needed.
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