Remote Desktop Manager Alternatives for Mac OS X

SecureCRT is a robust and highly configurable terminal emulator and SSH/Telnet client designed for network professionals and system administrators. It provides secure remote access, file transfer capabilities, and extensive session management features for managing servers, network devices, and other platforms.

Royal TS is a comprehensive remote connection management tool designed for IT professionals. It offers a centralized platform to manage various connection types including RDP, VNC, SSH, and Telnet, enhancing workflow efficiency for system administrators, developers, and engineers managing multiple remote systems.

Chrome Secure Shell is a robust, xterm-compatible terminal emulator and native SSH client for Chrome. It provides secure remote access to servers directly from your browser, offering essential features for network administration and development tasks within the familiar Chrome environment.

Apple Remote Desktop (ARD) is a powerful macOS application designed for managing and supporting Apple computers from a central location. It allows administrators to remotely control, monitor, and troubleshoot Macs across a network, making it an essential tool for IT professionals in macOS environments.

FireSSH is a free and open-source SSH terminal client designed as a browser extension for Waterfox. It provides secure shell access to remote servers directly within your web browser window, eliminating the need for a separate desktop application. With features like tabbed interfaces and host management, it offers a convenient and integrated solution for managing SSH connections.