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Emmanuel Pellereau b2f41b63dd [analyzer] Optimize UsedLocalElements.merge(). 13 hours ago
.dart_tool [infra] re-land work to auto-generate .dart_tool/package_config.json 3 months ago
.github [scorecards] Remove outdated version comments 4 weeks ago
benchmarks Add MapCopy to Omnibus benchmarks 7 days ago
build Reland "Update clang and gn to match Fuchsia." 2 weeks ago
docs Update breaking change process to account for language versioning 3 weeks ago
pkg [analyzer] Optimize UsedLocalElements.merge(). 13 hours ago
runtime [cfe] Handle augment super expressions 1 day ago
samples [samples/ffi] Run the async samples in sequence 6 days ago
samples-dev Migrate swarm's swarm_ui_lib/layout 3 weeks ago
samples_2 [samples/ffi] Run the async samples in sequence 6 days ago
sdk Remove dartanalyzer from built SDK. 4 days ago
tests [tests] Address comments for language/async/await_user_defined_future_soundness_test 3 days ago
third_party move the third_party/pkg_tested packages into third_party/pkg 3 weeks ago
tools [infra] move pkg/ analysis to the pkg- bots and analyze all of pkg/ (and tools/). 3 days ago
utils [ddc] Include shared library for new runtime types 1 month ago
.clang-format VM: Re-format to use at most one newline between functions 5 years ago
.gitattributes [web] rename suite dart2js -> web. 1 year ago
.gitconfig [infra] Add documentation to .gitconfig 4 years ago
.gitignore Remove the ignore for the top level .packages file. 4 days ago
.gn [infra] Migrate scripts to python3 1 year ago
.mailmap fix my name in .mailmap 4 years ago
.style.yapf Mass format python with yapf 3 years ago
.vpython [infra] Add .vpython spec to fix gsutil on the bots (#31065) 4 years ago
AUTHORS [vm] Support RISC-V. 6 months ago [deps] remove the dep on package:charcode 4 weeks ago Remove dartanalyzer from built SDK. 4 days ago Add more details to contributing docs 4 months ago
DEPS [deps] rev deps for http, test 1 day ago
LICENSE Update LICENSE 1 year ago
OWNERS [infra] Give VM engineers OWNERS over tools/ et al. 2 months ago
PATENT_GRANT Rename patent file 3 years ago [infra] re-land work to auto-generate .dart_tool/package_config.json 3 months ago
README.dart-sdk Remove dartanalyzer from built SDK. 4 days ago master => main 10 months ago Add link to published advisories 5 months ago
WATCHLISTS [dart2js] More shared_messages.dart cleanup 10 months ago
codereview.settings [infra] Default presubmits to use python3 11 months ago
sdk_args.gni Fix typos 3 weeks ago


A client-optimized language for fast apps on any platform

Dart is:

  • Optimized for UI: Develop with a programming language specialized around the needs of user interface creation.

  • Productive: Make changes iteratively: use hot reload to see the result instantly in your running app.

  • Fast on all platforms: Compile to ARM & x64 machine code for mobile, desktop, and backend. Or compile to JavaScript for the web.

Dart's flexible compiler technology lets you run Dart code in different ways, depending on your target platform and goals:

  • Dart Native: For programs targeting devices (mobile, desktop, server, and more), Dart Native includes both a Dart VM with JIT (just-in-time) compilation and an AOT (ahead-of-time) compiler for producing machine code.

  • Dart Web: For programs targeting the web, Dart Web includes both a development time compiler (dartdevc) and a production time compiler (dart2js).

Dart platforms illustration

License & patents

Dart is free and open source.


Using Dart

Visit to learn more about the language, tools, and to find codelabs.

Browse for more packages and libraries contributed by the community and the Dart team.

Our API reference documentation is published at, based on the stable release. (We also publish docs from our beta and dev channels, as well as from the primary development branch).

Building Dart

If you want to build Dart yourself, here is a guide to getting the source, preparing your machine to build the SDK, and building.

There are more documents on our wiki.

Contributing to Dart

The easiest way to contribute to Dart is to file issues.

You can also contribute patches, as described in Contributing.