You can install the Qt Framework and tools by using an online or offline installer or by building the source packages yourself.
In the online installer, you can select commercial or open source versions of Qt, tools, and Add-On components to install. Using the online installer requires signing in to your Qt Account. The installer retrieves the license attached to the account from a server and provides a list of available components corresponding to the license.
An offline installer is a single package that contains all of Qt and Add-Ons relevant for a target platform. Users with a commercial license can either sign in with their Qt account or with their Qt license key during the installation process. The license key is available in the Qt Account Web portal.
You can download Qt 5 installers from the Downloads page.
You can use the Qt installers to download and install the following components:
After downloading, start the installer like any executable on the development platform.
To run the installer, you need a Qt Account. You can use your Qt Account credentials to sign-in to all Qt services, including the wiki. If you do not already have a Qt Account, you can create one during the installation process.
To complete the installation, select the components that you want to install and follow the instructions of the installation program.
Use the Maintenance Tool under <install_dir> to add components and to update or remove installed components.
Note: From Qt 5.11, QDoc, the Qt documentation generation tool, requires clang from LLVM 3.9 or greater for parsing C++ code. If you intend to use QDoc to generate documentation for your own projects, or if you intend to build the Qt documentation locally from your Qt sources, see Getting Started with QDoc for details.
Developing applications on different platforms are covered in the platform pages.
For more information, visit the supported platforms page.
Learn the basics of Qt and Qt Quick development by following the two tutorials below that illustrate how to create simple applications and build and run them on target platforms:
Qt Widgets provides a library of UI elements which allow you to create classic desktop-style user interfaces. Qt Quick is a library providing types and functionalities for building modern, fluid, animated UIs.
For a more thorough walkthrough of the different aspects of developing applications with Qt 5, see the QML Book. It focuses on Qt Quick, but also provides the information needed to use QML together with C++.
We invite you to explore the rest of Qt. We prepared overviews which help you decide which APIs to use and our examples demonstrate how to use them.
To view a list of all Qt examples, visit the List of Qt Examples page.
Qt's vibrant and active community site, http://qt.io houses a wiki, and additional learning guides and presentations.