React is a JavaScript library. It’s used to build fast and interactive user interfaces for web and mobile applications. It’s an open-source, component-based, front-end library responsible only for the view layer of the application.
React is often known as “the V in the MVC architecture”, responsible for the looks and feels of the application. It is a client-side running on the JavaScript library client/user’s machine in the browser.
React was developed and maintained by the tech giant, Facebook in 2011. If you, as a developer, are aware of web development skills, such as JavaScript, CSS, and HTML, you can easily develop feature-rich UI very easily.