Flutter Engine

The Flutter Engine is a portable runtime for hosting Flutter applications. It implements Flutter's core libraries, including animation and graphics, file and network I/O, accessibility support, plugin architecture, and a Dart runtime and compile toolchain. Most developers will interact with Flutter via the Flutter Framework, which provides a modern, reactive framework, and a rich set of platform, layout and foundation widgets.

More tooling is available to make development experiences easier:

Target	Tool
Web	felt
Mobile or Desktop	et

To learn about running tests, see testing the engine.