React

React is a free and open-source front-end JavaScript library for building user interfaces based on UI components. It is maintained by Meta and a community of individual developers and companies. React can be used to develop single-page, mobile, or server-rendered applications with frameworks like Next.js.

It is primarily used by developers to create interactive and dynamic web applications efficiently. React is suitable for projects ranging from small personal websites to complex enterprise-level applications, offering a component-based architecture that promotes code reusability and easier maintenance.