- Qt 5.4.2 Reference Documentation

# Qt 5.4

Qt is a full development framework with tools designed to streamline the creation of applications and user interfaces for desktop, embedded, and mobile platforms.

## Qt Framework

Intuitive APIs for C++ and JavaScript-like programming with Qt Quick for rapid UI creation.

## Qt Creator IDE

A powerful cross-platform integrated development environment, including UI designer tools and on-device debugging.

## Tools and Toolchains

Internationalization support, embedded toolchains, and more.

## Licenses Used in Qt

Qt Framework and tools are available under both open-source and commercial licenses.

The commercially licensed Qt contains additional functionality and productivity tools. For details, see http://www.qt.io/download/.