macOS Finder is the file management application used in the macOS operating system. It allows users to navigate, organize, and manage files and folders on their computer. With a user-friendly interface, Finder provides features like search, tagging, and the ability to create shortcuts for quick access to frequently used items. In Finder, users can view their files in different layouts, such as icons or lists, and can easily move or copy files between folders. It also integrates with other macOS features, like iCloud Drive, enabling seamless access to files across devices.