Angular is a widely-used open-source framework for building web applications. Developed and maintained by Google, Angular provides a comprehensive set of tools and features that simplify the development process and enhance the performance and scalability of applications. Angular follows the component-based architecture, where applications are built by composing reusable and modular components.

One of the key features of Angular is its powerful data binding system, which allows for seamless synchronization between the application's data model and its user interface. Angular's two-way data binding enables automatic updates to the user interface whenever the underlying data changes, reducing the need for manual DOM manipulation.

Angular also offers a rich set of built-in directives, such as ngIf, ngFor, and ngStyle, which enable developers to manipulate the DOM, handle user interactions, and apply dynamic styles and behavior. Additionally, Angular provides a robust dependency injection system that facilitates the management of component dependencies and promotes code modularity and reusability.

With Angular, developers can build responsive and mobile-friendly applications. It includes features like reactive forms, client-side routing, and HTTP services that simplify common tasks and allow for efficient interaction with backend APIs. Angular is supported by a large community and has extensive documentation, making it accessible for both beginners and experienced developers.