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Dart

Dart is an open-source, scalable programming language, with robust libraries and runtimes, for building web, server, and mobile apps.

Dart

An approachable, portable, and productive language for high-quality apps on any platform

Dart is:

  • Approachable: Develop with a strongly typed programming language that is consistent, concise, and offers modern language features like null safety and patterns.

  • Portable: Compile to ARM, x64, or RISC-V machine code for mobile, desktop, and backend. Compile to JavaScript or WebAssembly for the web.

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

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).

License & patents

Dart is free and open source.

See LICENSE and PATENT_GRANT.

Using Dart

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

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

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

Security & reporting vulnerabilities

To report potential vulnerabilities, please see our security policy on https://dart.dev/security.

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  1. sdk sdk Public

    The Dart SDK, including the VM, JS and Wasm compilers, analysis, core libraries, and more.

    Dart 10.9k 1.7k

  2. language language Public

    Design of the Dart language

    TeX 2.9k 229

  3. site-www site-www Public

    The source for the Dart website.

    Dart 1k 752

  4. dart-pad dart-pad Public

    An online Dart editor with support for console, web, and Flutter apps.

    Dart 1.8k 610

  5. web web Public

    Lightweight browser API bindings built around JS static interop.

    Dart 184 44

Repositories

Showing 10 of 42 repositories
  • mockito Public

    Mockito-inspired mock library for Dart

    dart-lang/mockito’s past year of commit activity
    Dart 658 Apache-2.0 172 71 7 Updated Dec 1, 2025
  • sdk Public

    The Dart SDK, including the VM, JS and Wasm compilers, analysis, core libraries, and more.

    dart-lang/sdk’s past year of commit activity
    Dart 10,937 BSD-3-Clause 1,717 5,000+ (1 issue needs help) 4 Updated Dec 1, 2025
  • ecosystem Public

    This repository is home to general Dart Ecosystem tools and packages.

    dart-lang/ecosystem’s past year of commit activity
    Dart 71 BSD-3-Clause 8 29 1 Updated Dec 1, 2025
  • co19 Public

    A Dart language and library conformance test suite

    dart-lang/co19’s past year of commit activity
    Dart 43 BSD-3-Clause 29 18 6 Updated Dec 1, 2025
  • dartbug.com Public

    The redirect service for Dart issues and bugs.

    dart-lang/dartbug.com’s past year of commit activity
    Dart 26 BSD-3-Clause 11 0 1 Updated Dec 1, 2025
  • leak_tracker Public

    A framework for memory leak tracking for Dart and Flutter applications.

    dart-lang/leak_tracker’s past year of commit activity
    Dart 436 BSD-3-Clause 25 14 1 Updated Dec 1, 2025
  • dartdoc Public

    API documentation tool for Dart.

    dart-lang/dartdoc’s past year of commit activity
    Dart 495 BSD-3-Clause 131 267 (1 issue needs help) 8 Updated Dec 1, 2025
  • dart-pad Public

    An online Dart editor with support for console, web, and Flutter apps.

    dart-lang/dart-pad’s past year of commit activity
    Dart 1,827 BSD-3-Clause 610 167 (1 issue needs help) 1 Updated Dec 1, 2025
  • http Public

    A composable API for making HTTP requests in Dart.

    dart-lang/http’s past year of commit activity
    Dart 1,089 BSD-3-Clause 391 364 8 Updated Dec 1, 2025
  • ai Public

    A general repository for AI / GenAI packages and explorations.

    dart-lang/ai’s past year of commit activity
    Dart 208 BSD-3-Clause 49 21 5 Updated Dec 1, 2025