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Learn more about Google Flutter

Flutter is a Google SDK for building native interfaces for iOS and Android using the Dart programming language. Flutter can integrate with existing iOS and Android code bases. It's free and open-source.

Frequently asked questions
Flutter is Google’s UI toolkit for building beautiful, natively compiled applications for mobile, web, and desktop from a single codebase. Flutter was originally launched with support for iOS and Android. Flutter 2 was launched as a stable release in March 2021, with support for Windows, macOS, Linux, and web. Flutter runs with Dart, a programming language developed by Google. Dart is a strongly-typed, object-oriented language with a familiar C-style syntax. Developers can compile Dart programs into fast native code that runs smoothly on all supported platforms. On the web, Dart is compiled to JavaScript code that can run on the browser. Flutter is composed of three architectural layers: the Flutter framework, which is written in Dart and provides all the widgets that developers use to build their apps; the Flutter Engine, written in C++, which provides low-level rendering support with Google’s Skia; and the platform-specific Embedder, which talks directly to the operating system.