The primary audience, is web developers. Dart is an ambitious attempt at simplyfing web development, reducing complexity and improving productivity which: -

The primary audience, is web developers. Dart is an ambitious attempt at simplyfing web development, reducing complexity and improving productivity which: - Provides a familiar language with clean semantics and low ceremony - Provides the fastest dev iteration times (there's no compile step, just edit + run in Dart VM/Dartium) - Provides ~10x faster start-up times with snapshots (Dart VM) - Provides faster run-time performance, that's predictable and can take advantage of real integers and SIMD instructions (VM Only) - Provides a unified object model so all classes from all libraries can interoperate - Providing a rich, well-defined, consistent API, real collections, removing JS WATs, smoothing over browser quirks - Provides a unified and composable IO model: Futures and Streams (repeating events) - Provides a new powerful way to develop client apps with Web UI (Dart WebComponents) offering unprecedented levels of encapsulation and reusability - Provides optimal dev and deployment options, you never have to worry about choosing the smallest libs as tree-shaking ensures only code used is compiled and minified - Providing "full-stack" dev environment, e.g. same language on client and server There are many initiatives ongoing to improve web development IMO Dart is the most radical and has the most potential to provide a productive web development environment in the visible future. I hope it extends further than that and is offered as a language choice on Android (which will make me switch to Android dev).