1 million software developers love Qt because they can build powerful cross-platform applications - modular C++ class library, declarative design & pro IDE.

Develop mobile, desktop, and embedded applications using the Qt UI framework, Qt Creator, and other tools. Includes Qt AI Assistant, Qt Design Studio and hardware reference images for popular processors.

All the essential Qt tools for all stages of Software Development Lifecycle: planning, design, development, testing, and deployment.

Welcome to the documentation pages for Qt, the cross-platform software development framework. The Qt Ecosystem One-Stop-Shop for Extensions and more! #1 place to find and share content for Qt. Webinars, tutorials, videos, and more. © 2025 The Qt Company.

To start writing Qt applications, you have to get Qt libraries, and, if you want, an IDE. They can be built from source, or better, be downloaded as an SDK from the download page . This SDK includes a lot of features, like cross compilers for Symbian and the Nokia N9.

The easiest way to start application development with Qt is to download and install Qt. Qt installations contain Qt libraries, examples, documentation, and the necessary development tools, such as the Qt Creator integrated development environment (IDE).

Hello and welcome to Qt! To get you started with Qt, we'll need to know what you'd like to do.

The Qt framework contains a comprehensive set of highly intuitive and modularized C++ library classes and is loaded with APIs to simplify your application development. Qt produces highly readable, easily maintainable and reusable code with high runtime performance and small footprint – and it's cross-platform.

Qt is a cross-platform application development framework for desktop, embedded and mobile. Supported Platforms include Linux, OS X, Windows, VxWorks, QNX, Android, iOS, BlackBerry, Sailfish OS and others. Qt is not a programming language on its own. It …

A new module and API for defining 3D content in Qt Quick. Qt Base (Core, Gui, Widgets, Network, ...) Loading…