Web developers are professionals who create and maintain websites. They use programming languages like HTML, CSS, and JavaScript to build the structure, design, and functionality of a site. Their work ensures that websites are user-friendly, visually appealing, and responsive on different devices, such as smartphones and tablets. In addition to coding, web developers often collaborate with graphic designers and content creators to bring a website's vision to life. They also troubleshoot issues, optimize site performance, and ensure that websites are secure. Overall, web developers play a crucial role in shaping our online experiences.