An SSH client is a software application that allows users to connect securely to a remote computer or server using the Secure Shell (SSH) protocol. This connection encrypts data, ensuring that sensitive information remains private during transmission. SSH clients are commonly used for managing servers, transferring files, and executing commands remotely. Popular SSH clients include PuTTY for Windows, OpenSSH for Linux and macOS, and Termius for mobile devices. These tools provide a user-friendly interface for establishing secure connections, making it easier for users to perform administrative tasks and maintain their systems from anywhere.