Dart SDK overview

The Dart SDK has the libraries and command-line tools that you need to develop Dart web, command-line, and server apps. To install the Dart SDK, see Get Dart. If you're developing Flutter apps, install the Flutter SDK. The Flutter SDK includes the Dart SDK.

To learn about other tools you can use for Dart development, check out the Dart tools page.

The Dart SDK includes two directories:

• lib contains the Dart libraries.
• bin contains the following command-line tools.

dart

The command-line interface to create, format, analyze, test, document, compile, and run Dart code.

dartaotruntime

A Dart runtime for AOT-compiled snapshots.

The Dart language expects Dart code to be encoded using UTF-8.

To learn more about the SDK, check out its README file.

The Dart team supports only the latest, stable version of the Dart SDK. When a new major or minor version is released, older versions are no longer supported. For example, if 3.7.x is the latest release, it is supported until 3.8.0 or 4.0.0 is released, whichever comes first.

The Dart team provides fixes to critical issues and security problems as needed through patch releases but only for the currently supported version. For example, if 3.7.0 is the latest stable release, a fix to a vulnerability might be issued in a 3.7.1 patch release.

On average, the Dart team ships a new stable release every 3 months. Patch releases to the currently supported version are shipped as needed.

This policy helps ensure Dart developers have access to a stable and reliable platform that continues to evolve with new features and improvements.

To see existing issues or create a new one, go to the SDK issue tracker.

Unless stated otherwise, the documentation on this site reflects Dart 3.7.1. Page last updated on 2025-03-03. View source or report an issue.