Web development is the process of building and running websites and web apps—the experiences you may access via a browser. It contains three levels. Front-end development effects everything users see and touch, involving layouts, colours, typography, animations, and interactive elements created with HTML for structure, CSS for styling, and JavaScript (plus frameworks such as React or Vue) for dynamic behaviour. Back-end development powers the behind-the-scenes logic, involving servers, databases, and application code written in languages like Python, Node.js, Ruby, or PHP to manage requests, process data, and ensure security. Full-stack developers bridge both realms, ensuring seamless handoffs between UI and server logic. Modern workflows add DevOps practices—version control with Git, continuous integration, containerization, and cloud hosting—to streamline deployment and scalability. Accessibility, responsive design, and performance optimization ensure sites load fast and work for all users on any device. Together, these disciplines turn design concepts into functional, secure, and engaging digital experiences that drive business goals and user satisfaction.