Angular is a platform and framework for building single-page client applications using HTML and TypeScript. Developed and maintained by Google, Angular provides a comprehensive set of tools and libraries for building dynamic and responsive web applications. It uses a component-based architecture, allowing developers to create reusable UI components. Angular also includes features like data binding, dependency injection, routing, and state management, making it a powerful tool for developing complex web applications. By using TypeScript, Angular enhances code quality and maintainability with static typing and modern JavaScript features.