UI development using Next.js and React.js in conjunction with Tailwind CSS, Ant Design, and Material UI combines powerful frameworks and design systems to create dynamic, responsive, and visually appealing user interfaces. Leveraging React.js and Next.js ensures robust, efficient, and scalable front-end development. Tailwind CSS offers utility-first styling, facilitating rapid design iteration and consistent UI creation. Ant Design and Material UI provide pre-built components, enhancing development speed while maintaining design consistency.