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Google uses cookies to deliver its services, to personalize ads, and to analyze traffic. You can adjust your privacy controls anytime in your Google settings . Learn more . Okay menu Overview Docs Community Try Dart Get Dart Dart and Flutter are back at Google I/O on May 14! Register now Overview Community Try Dart Get Dart Docs Tutorials & codelabs Tutorials Codelabs List of Dart codelabs Language cheatsheet Iterable collections Asynchronous programming Language Introduction Syntax basics Variables Operators Comments Metadata Libraries & imports Keywords Types Built-in types Records Collections Generics Typedefs Type system Patterns Overview & usage Pattern types Functions Control flow Loops Branches Error handling Classes & objects Classes Constructors Methods Extend a class Mixins Enums Extension methods Extension types Callable objects Class modifiers Overview & usage Class modifiers for API maintainers Reference Concurrency Overview Asynchronous support Isolates Null safety Sound null safety Migrating to null safety Understanding null safety Unsound null safety FAQ Core libraries Overview dart:core dart:async dart:math dart:convert dart:io dart:html Using streams Creating streams Futures and error handling Effective Dart Overview Style Documentation Usage Design Packages How to use packages Commonly used packages Creating packages Publishing packages Writing package pages Package reference Dependencies Glossary Package layout conventions Pub environment variables Pubspec file Troubleshooting pub Verified publishers Security advisories Versioning Development Futures, async, await JSON Number representation Google APIs Multi-platform apps Command-line & server apps Overview Get started Write command-line apps Fetch data from the internet Write HTTP servers Libraries & packages Google Cloud Web apps Overview Get started Deployment Libraries & packages Wasm compilation Environment declarations Interoperability C interop Objective-C & Swift interop Java & Kotlin interop JavaScript interop Overview Usage JS types Tutorials Past JS interop Web interop Tools & techniques Overview Editors & debuggers IntelliJ & Android Studio VS Code Dart DevTools DartPad Overview Troubleshooting DartPad Command-line tools Dart SDK Overview dart dart analyze dart compile dart create dart doc dart fix dart format dart info dart pub dart run dart test dartaotruntime Experiment flags Other command-line tools build_runner webdev Static analysis Customizing static analysis Fixing common type problems Fixing type promotion failures Linter rules Diagnostic messages Testing & optimization Testing Debugging web apps What not to commit Resources Breaking changes Language evolution Language specification Dart 3 migration guide Coming from ... JavaScript to Dart Swift to Dart FAQ Glossary Books Videos Related sites API reference Blog DartPad (online editor) Flutter Package site description bug_report Web platform Dart supports the web as one of its core platforms . Dart-to-JavaScript compilers are available both for development (with a quick edit-refresh cycle) and for production (with a focus on code size and speed). In addition to compilers, the Dart web platform provides core libraries , access to the DOM (Document Object Model) , and interoperability for calling JavaScript from Dart. You have the option of using Dart web with a higher-level web app framework. Many apps that support web plus mobile or desktop are built using Flutter and Flutter web support. Flutter web support and other web app frameworks for Dart are powered by the Dart web platform. Build a web app with Dart Flutter Gallery, running in a web browser Except as otherwise noted, this site is licensed under a Creative Commons Attribution 4.0 International License , and code samples are licensed under the 3-Clause BSD License . Terms Privacy...