An Internet browser is a software application that allows users to access and navigate the World Wide Web. Popular browsers include Google Chrome, Mozilla Firefox, Safari, and Microsoft Edge. They interpret and display web pages, enabling users to view text, images, and videos online. Browsers also provide features like bookmarks for saving favorite sites, tabs for opening multiple pages at once, and privacy modes for secure browsing. They often support extensions or add-ons, which enhance functionality by adding tools or features tailored to user needs.