Front-end development, also known as client-side development, is the process of creating the visual and interactive elements of a website or web application that users interact with directly. This includes everything from the layout and design to buttons, forms, and animations. Front-end developers use technologies such as HTML, CSS, and JavaScript to build user interfaces that are both functional and aesthetically pleasing. They also work with frameworks and libraries like React, Angular, and Vue.js to enhance the development process, enabling the creation of dynamic and responsive web applications.

In addition to coding the user interface, front-end developers focus on ensuring that the website or application is accessible, performant, and compatible across different devices and browsers. They often collaborate closely with back-end developers, UI/UX designers, and other team members to implement designs that provide a seamless user experience. As the demand for rich, interactive web applications grows, front-end development has become a critical aspect of web development, requiring a deep understanding of both technical and design principles.