Dart is a programming language designed specifically for building user interfaces, offering robust features like sound null safety and a flexible type system. It supports event-driven code and isolate-based concurrency, making it suitable for both frontend and backend development. Developers can utilize Dart's rich static analysis and customizable tooling to enhance their coding experience. The language is optimized for web applications with mature compilers for JavaScript, enabling seamless integration and performance.

In addition to its primary features, Dart provides a collection of functionalities such as the spread operator for expanding collections and collection if for platform-specific UI customization. It caters to a diverse audience including small businesses, enterprises, and freelancers, with support for various integrations and an accessible mobile app for on-the-go development. The comprehensive documentation further aids users in mastering the language and its capabilities.