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          Qt is the complete software development framework

          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.

          Explore Qt Features


          Qt ESSENTIALS

          Making true cross-platform possible

          Qt Essentials define the foundation of Qt on all platforms. They are available on all supported development platforms and on the tested target platforms.

          Browse all Qt Essentials
          Qt Core

          Core non-graphical classes used by other modules.

          Qt GUI

          Base classes for graphical user interface components. Includes OpenGL.

          Qt Multimedia

          Classes for audio, video, radio and camera functionality.

          Qt Network

          Classes to make network programming easier and more portable.

          Qt Quick

          A declarative framework for building highly dynamic applications with custom user interfaces.

          Qt SQL

          Classes for database integration using SQL.

          Qt ADD-ONS

          The right add-ons
          for the right task

          These special-purpose modules may only be available on some development platform. Many add-on modules are either feature-complete and exist for backward compatibility or are only applicable to certain platforms.

          Browse all Qt Add-Ons
          Qt OpenGL

          OpenGL support classes. Deprecated in favor of the QOpenGL classes in the Qt GUI module.

          Qt Wayland Compositor

          Provides a framework to develop a Wayland compositor.

          Qt Sensors

          Provides access to sensor hardware and motion gesture recognition.

          Qt WebView

          Displays web content in a QML application by using APIs native to the platform, without the need to include a full web browser stack.

          Qt Safe Renderer

          Provides a UI rendering component that can be used to render safety-critical items, such as warning indicators, in functional safety systems.

          Qt SCXML

          Provides classes and tools for creating state machines from SCXML files and embedding them in applications.

          QML DEMO

          Get a feel for QML coding in our declarative online coding app

          Try the demo app now

          Get Qt