Cookies are small text files that websites store on a user's device via the web browser. They retain user-specific information, such as login credentials, site preferences, and items in a shopping cart, making the browsing experience more personalized and efficient.
For example, when a user logs into a website, a cookie might be used to remember the session so the user doesn't have to re-enter credentials on every page. Cookies can also track user behavior across multiple sessions, helping website owners analyze traffic patterns and improve site functionality. To manage privacy, most browsers allow users to view, manage, and delete cookies as needed.