Is Angular 9 front-end or backend?

The frontend is the presentation layer of your app, which is directly accessible to the user and displayed in user screens. The basic frontend technology stack includes HTML, CSS, Javascript, and some of its advanced frameworks like React, Angular, or VueJS .

Angular is an open-source front-end framework developed by Google for creating dynamic modern web apps.

Angular is a front-end framework. You can’t use it to build a backend app. But if you already master the Angular concepts and want to be able to build backend apps, you may want to check Nest. js which is a backend framework based on Node and TypeScript and inspired by Angular.