👉 Cookies are small text files that websites store on a user's device, typically in their browser, to remember information about their interactions and preferences. When a user visits a website, it sends a cookie back to the user's browser, which stores it. This allows the website to recognize the user and maintain their settings, such as language preferences or items in a shopping cart, across multiple visits. Cookies can be categorized into different types, such as session cookies that expire when the browser closes or persistent cookies that remain on the device until manually deleted. They are used for various purposes, including improving user experience, personalizing content, and tracking website analytics. However, cookies also raise privacy concerns as they can collect data about user behavior and preferences without explicit consent, prompting regulations like the General Data Protection Regulation (GDPR) to ensure user privacy and control over their data.