Web design refers to the process of designing the visual layout and user interface of a website. It involves creating the aesthetic appearance of the site, including the arrangement of elements such as text, images, colors, and interactive features.

Web designers focus on aspects such as typography, color theory, graphic design principles, and user experience (UX) design to create visually appealing and user-friendly websites.

Tools commonly used by web designers include Adobe Photoshop, Illustrator, Sketch, Figma, and Adobe XD. These tools help designers create wireframes, mockups, and prototypes to visualize the website's layout and design.

The goal of web design is to create a visually engaging and intuitive interface that effectively communicates the website's content and facilitates user interaction.

Web development refers to the process of building and maintaining the functional aspects of a website. It involves writing code to implement the design and create the underlying structure, functionality, and interactivity of the site.

Web developers use programming languages such as HTML, CSS, and JavaScript to build websites. They may also use frameworks and libraries like Bootstrap, React, Angular, or Vue.js to streamline the development process and enhance functionality.

Front-end development focuses on the client-side aspects of the website that users interact with directly. This includes the layout, design, and interactivity of web pages, as well as optimizing them for various devices and screen sizes.

Back-end development involves building and maintaining the server-side infrastructure of the website, including databases, server configuration, and application logic. Back-end developers often use server-side languages like PHP, Python, Ruby, Java, or Node.js, along with frameworks like Django, Flask, Ruby on Rails, Spring Boot, or Express.js.