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

Download Qt and create applications for desktop and embedded systems with ease. Get a free trial of Qt Creator, Qt Design Studio, and more.

Use Qt's libraries and APIs to develop software with native C++ performance for mobile, desktop, and embedded systems. Get a full overview of the Qt Framework

Welcome to the documentation pages for Qt, the cross-platform software development framework.

Qt Framework contains cross-platform software libraries and APIs for embedded systems & software development, including Python/C++, Windows, Linux.

Qt's cross platform development tools make building and deploying software faster and more efficient. Localization & compiler tools simplify work further.

Learn how you can use the Qt framework under both open source and commercial licenses. Download Qt for open source development and get started today!

With the Qt AI Assistant, developers can now enjoy smarter coding support. From auto-completion and code optimization to automatic generation of test cases and documentation, the Qt AI Assistant transforms software development for desktop, mobile, and embedded platforms.

You can get Qt, its modules and tools via Qt Online Installer or Qt Maintenance Tool. Via Qt Online Installer you can do new installations. Qt Maintenance Tool is included in each Qt installation and with it you can update your Qt installation for example by …

Experience the Power of Qt 6. Next-generation UX with a single tool to design and develop 2D & 3D UIs. Limitless scalability to deploy smartphone-like UIs on ultra-low-cost hardware and advanced graphics on supercomputers. Qt 6 is the foundation we will build on to deliver the productivity platform for the future.