| # Flutter Engine |
| |
| The Flutter Engine is a portable runtime for hosting |
| [Flutter](https://flutter.dev) 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](https://github.com/flutter/flutter), 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`](flutter/lib/web_ui/README.md#using-felt) | |
| | Mobile or Desktop | [`et`](flutter/tools/engine_tool/README.md#engine-tool) | |
| |
| To learn about running tests, see [testing the engine](flutter/docs/testing/Testing-the-engine.md). |
