The Qt Installer Framework provides a set of tools and utilities to create installers for the supported desktop Qt platforms: Linux, Microsoft Windows, and Mac OS X.
The Qt Installer Framework is used e.g. for the Qt SDK installers, and Qt Creator installer.
Source Code: http://code.qt.io/cgit/installer-framework/installer-framework.git/tree/
Review Board: https://codereview.qt.io/#admin,project,installer-framework/installer-framework,info
Building an Installer
You can either compile the Installer Framework on your own, or use a prebuilt one. It is recommended to build the 2.0 branch yourself.
Compiling the Installer Framework
Using a prebuilt version
The current prebuilt release version is available from the downloads page https://download.qt.io/official_releases/qt-installer-framework/ (GPL/LPGL license), or from your Qt Account (commercial license).
Nightly snapshots are available at http://download.qt.io/snapshots/ifw/
Commercial customers can of course also contact the Qt support.