Web development is the process of creating and maintaining websites. It involves various tasks, including designing the layout, writing code, and ensuring that the site functions properly. Web developers use languages like HTML, CSS, and JavaScript to build user-friendly and visually appealing websites that can be accessed on different devices. In addition to building new sites, web development also includes updating and improving existing ones. This can involve fixing bugs, enhancing security, and optimizing performance. Overall, web development plays a crucial role in how we interact with the internet, making it essential for businesses and individuals alike.