Plugins are small software components that add specific features or functionalities to a larger program. For example, in web browsers like Google Chrome, plugins can enhance your browsing experience by blocking ads, managing passwords, or integrating with other services. They allow users to customize their software according to their needs without altering the core program. In the world of WordPress, plugins are essential for building websites. They can help with tasks like improving SEO, adding contact forms, or creating online stores. By using plugins, website owners can easily expand their site's capabilities and improve user experience without needing extensive coding knowledge.