Install Flutter
Ready to build beautiful, multiplatform apps from a single codebase? Choose from the following two options to get started setting up your Flutter development environment.

Flutter documentation
Get started with Flutter. Widgets, examples, updates, and API docs to help you write your first Flutter app.

Development - Flutter
Flutter allows you to build apps for mobile, web, desktop, and embedded devices — all from a single codebase.

GitHub - flutter/flutter: Flutter makes it easy and fast to build ...
Flutter is Google's SDK for crafting beautiful, fast user experiences 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 (software) - Wikipedia
Flutter is an open-source UI software development kit created by Google. It can be used to develop cross platform applications from a single codebase for the web, [4] Fuchsia, Android, iOS, Linux, macOS, and Windows. [5]

FlutterFlow - Build Beautiful, Modern Apps
What we also liked about FlutterFlow was that we could always export the code into Flutter and we could keep it going as we scaled, which we didn't see with other platforms.

Flutter Tutorial - GeeksforGeeks
This Flutter Tutorial is specifically designed for beginners and experienced professionals. It covers both the basics and advanced concepts of the Flutter framework.

Flutter - GitHub
Flutter is an open source UI toolkit for building beautiful, natively compiled applications for mobile, web, desktop, and embedded devices from a single codebase.

What is Flutter? - GeeksforGeeks
Flutter is a game-changer for app startups and developers, making it easy to build apps that work on both iOS and Android with a single codebase. It saves time, reduces costs, and requires fewer developers, helping startups launch stunning, high-performance apps quickly.