Next-js is a powerful and popular React framework for building modern web applications. Developed by Vercel, Next.js simplifies and enhances the React development experience by providing a set of conventions and tools for building robust and performant applications. It extends React's capabilities, offering features that address common challenges in web development. One of the standout features of Next.js is its built-in support for server-side rendering. This enables faster initial page loads by rendering React components on the server and sending the HTML to the client, reducing the time users spend waiting for content to appear.