Clone this repo:
  1. db7e32a Roll Dart SDK from 5221b0b2c2aa to e1fd8a734d27 (8 revisions) (#36633) by skia-flutter-autoroll · 5 hours ago main master
  2. 3099313 Roll buildroot to use Fuchsia toolchain for iOS arm simulator (#36631) by Jenn Magder · 5 hours ago
  3. 5f2daf0 Roll buildroot for bitcode property removal (#36626) by Jenn Magder · 9 hours ago
  4. 377bd08 [macOS][iOS] Eliminate strip_bitcode action (#36627) by Chris Bracken · 9 hours ago
  5. 062edc4 Add ImmutableBuffer.fromFilePath (#36623) by Jonah Williams · 10 hours ago

Flutter Engine

OpenSSF Scorecard

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.

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.

If you want to run/contribute to Flutter Web engine, more tooling can be found at felt. This is a tool written to make web engine development experience easy.

If you are new to Flutter, then you will find more general information on the Flutter project, including tutorials and samples, on our Web site at For specific information about Flutter's APIs, consider our API reference which can be found at the

Flutter is a fully open source project, and we welcome contributions. Information on how to get started can be found at our contributor guide.