React.js

React (also known as React.js or ReactJS) is a popular open-source JavaScript library used for building dynamic and responsive user interfaces based on reusable components. It is maintained by Meta (formerly Facebook) and a large community of developers.

React is widely used to develop single-page applications (SPA), mobile apps (with React Native), or server-rendered apps (with frameworks like Next.js). While React focuses solely on the view layer, it can be extended with additional libraries for routing, state management, and other client-side features.

🔧 Core benefits:

  • Reusable UI components
  • High performance with virtual DOM
  • Strong ecosystem and community
  • Compatible with modern tools and frameworks