Qt 6.4 is out now! Scale your UX to the next level with the all-new 3D physics engine and Qt for WebAssembly. Read more.
最新版Qt 6.3已正式发布。 了解更多。
最新バージョンQt 6.3がご利用いただけます。 詳細はこちら

Frequently Asked Questions

Commercial Licensing

Answers to your questions about Qt commercial licensing including subscription and license management. 

Commercial licensing FAQ

Online Purchase & Payments

All related questions about the online purchase and payment regulations in our WebShop and Marketplace.. 

Go to this FAQ

Marketplace Extensions

Essential answers about how purchases and extensions for Qt are handled in the Qt Marketplace platform.

Marketplace FAQ

Open Source Qt Usage

Find information about using Qt under the (L)GPL, your options, obligations and restrictions. 

Qt open source licensing FAQ