Zypper is a command-line package management tool used in openSUSE and other SUSE Linux distributions. It allows users to install, update, and remove software packages easily. Zypper manages software repositories, ensuring that users can access the latest versions of applications and system components. With Zypper, users can perform various tasks, such as searching for packages, resolving dependencies, and managing repositories. It provides a straightforward interface for handling software, making it a valuable tool for both beginners and experienced Linux users who want to maintain their systems efficiently.