Is Flutter for UI only?

The flutter run command launches the application using the development compiler in a Chrome browser . Warning: Hot reload is not supported in a web browser Currently, Flutter supports hot restart, but not hot reload in a web browser.

What is Flutter? Flutter is Google’s portable UI toolkit for crafting beautiful, natively compiled applications for mobile, web, and desktop from a single codebase. Flutter works with existing code, is used by developers and organizations around the world, and is free and open source.

Flutter is a free and open source application development framework developed by Google. It can be used to create beautiful, natively compiled applications for mobile (Android and iOS), web, and desktop from a single codebase.