Website development involves building, designing, and maintaining websites. It consists of front-end development, which focuses on the layout and user experience using technologies like HTML, CSS, and JavaScript, and back-end development, which manages server-side operations, databases, and logic using languages like PHP, Python, or Node.js. Developers often use frameworks and content management systems (CMS) such as WordPress or React to simplify the process. Responsive design is also crucial to ensure websites work smoothly across different devices. Website development plays a vital role in establishing an online presence, enabling businesses and individuals to connect with users globally.