Following are the key features of AngularJS
Use modern web platform capabilities to deliver app-like experiences. High performance, offline, and zero-step installation.
Build native mobile apps with strategies from Ionic Framework, NativeScript, and React Native.
Create desktop-installed apps across Mac, Windows, and Linux using the same Angular methods you've learned for the web plus the ability to access native OS APIs.
Speed and Performance
Serve the first view of your application on node.js, .NET, PHP, and other servers for near-instant rendering in just HTML and CSS. Also paves the way for sites that optimize for SEO.
Angular apps load quickly with the new Component Router, which delivers automatic code-splitting so users only load code required to render the view they request.
Quickly create UI views with simple and powerful template syntax.
Command line tools: start building fast, add components and tests, then instantly deploy.
Get intelligent code completion, instant errors, and other feedback in popular editors and IDEs.
Full Development Story
With Karma for unit tests, you can know if you've broken things every time you save. And Protractor makes your scenario tests run faster and in a stable manner.
Create high-performance, complex choreographies and animation timelines with very little code through Angular's intuitive API.
Create accessible applications with ARIA-enabled components, developer guides, and built-in a11y test infrastructure.