These files are for Open Source use only. If you are a commercial developer then please go to the commercial Qt evaluation page and apply for a supported evaluation instead.

Qt/Windows Open Source Edition is provided with no support and no warranty.

Qt Open Source Edition is provided under the GNU General Public License (GPL). You may use the Qt Open Source Edition for:

• Development of open source/non-proprietary software that is also released under the GPL license.
• Compiling and running GPL software developed by others.

If you are writing commercial/proprietary software, or if you plan to commercialize the software you are writing with Qt, you must use a commercial version of Qt. Please refer to the Open Source Downloads info page for reasons why.

Qt Console, Qt Desktop Light and Qt Desktop Editions can be purchased for development of commercial/proprietary software. If you wish to evaluate Qt/Windows for commercial use, please contact sales or go to the Qt Evaluation page.

Please note that the Open Source Edition of Qt will support the MinGW compiler. Visual Studio support and integration is only provided with the commercial Editions of Qt.

More questions? See the FAQs.

The current version of Qt/Windows Open Source Edition is 4.4.0.

If you are interested in previous versions of Qt go here.

If you experience problems installing or compiling Qt Open Source Edition please read the Installation FAQ and Platform Notes!

File format and availability

Qt/Windows Open Source Edition is available as a self-extracting installer. The archive contains the complete source code of the Qt libraries with full reference documentation. The package provided will also download and install the MinGW compiler, if needed.

Download

Note: it may take some time for the mirrors' permissions to be updated.

 

National Technical University of Athens, Athens, Greece
HTTP:

• http://ftp.ntua.gr/pub/X11/Qt/qt/source/qt-win-opensource-src-4.4.0.zip
• http://ftp.ntua.gr/pub/X11/Qt/qt/source/qt-win-opensource-4.4.0-mingw.exe

FTP:

• ftp://ftp.ntua.gr/pub/X11/Qt/qt/source/qt-win-opensource-src-4.4.0.zip
• ftp://ftp.ntua.gr/pub/X11/Qt/qt/source/qt-win-opensource-4.4.0-mingw.exe

Technical University Chemnitz, Chemnitz, Germany

HTTP:

• http://wftp.tu-chemnitz.de/pub/Qt/qt/source/qt-win-opensource-src-4.4.0.zip
• http://wftp.tu-chemnitz.de/pub/Qt/qt/source/qt-win-opensource-4.4.0-mingw.exe

FTP:

• ftp://ftp.tu-chemnitz.de/pub/Qt/qt/source/qt-win-opensource-src-4.4.0.zip
• ftp://ftp.tu-chemnitz.de/pub/Qt/qt/source/qt-win-opensource-4.4.0-mingw.exe

HEAnet, Dublin, Ireland
HTTP:

• http://ftp.heanet.ie/mirrors/ftp.trolltech.com/pub/qt/

 
FTP:

• ftp://ftp.heanet.ie/mirrors/ftp.trolltech.com/pub/qt/

• rsync://ftp.heanet.ie/mirrors/ftp.trolltech.com/pub/qt/
  

Download from ftp.trolltech.com:

• qt-win-opensource-src-4.4.0.zip
  
• qt-win-opensource-4.4.0-mingw.exe
  

Md5 Checksums

You can find available Md5 checksums for these files here.