Top Alternatives to OpenSSH

PuTTY is a free and open-source terminal emulator, serial console, and network file transfer application. It supports multiple network protocols, including SSH, Telnet, and Rlogin, making it a versatile tool for remote server administration and development workflows. Its lightweight nature and configurability have made it a popular choice among system administrators and developers for Windows platforms.

KiTTY is a robust and portable Telnet and SSH client for Windows, offering enhanced features beyond the standard PuTTY client, including session filtering, portability, and advanced scripting capabilities, making it ideal for network administrators and power users.

ConnectBot is a robust, open-source Secure Shell (SSH) client tailored for the Android operating system. It enables users to securely connect to remote servers, execute commands, and manage systems directly from their mobile devices, offering support for SSH, Telnet, and a local terminal emulator.

ZOC is a professional terminal emulator designed for Windows and macOS. It offers a wide range of terminal emulation types and robust features for secure shell (SSH) and Telnet connections, scripting automation, and file transfers. It's a reliable tool for system administrators, network engineers, and developers.

Xshell is a robust and feature-rich terminal emulator engineered for demanding network environments. It provides secure and reliable connectivity through leading protocols like SSH, SFTP, TELNET, RLOGIN, and SERIAL, offering advanced session management, customization options, and a powerful scripting engine for automation.

PAC Manager is a robust and versatile connection manager for Linux, designed to simplify and streamline access to various remote systems including SSH, VNC, Telnet, and RDP. It provides an integrated environment for managing connections, executing remote commands, and automating tasks, serving as a powerful alternative to tools like SecureCRT or PuTTY for Linux users.

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.

Mosh is a robust mobile shell that significantly enhances the remote terminal experience, especially over unstable connections. It acts as a drop-in replacement for SSH, offering seamless roaming, intelligent local echo, and automatic reconnection.

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.

JuiceSSH is a professional Android SSH client, supporting Telnet and Mosh. It offers robust host management, comprehensive terminal features like color support and tabbed interface, and security through encryption. Ideal for network administrators and developers on the go.

Bitvise SSH Server, formerly WinSSHD, is a robust and feature-rich SSH server for Windows environments, providing secure remote access, file transfer (SFTP, SCP), and tunnel forwarding capabilities for businesses and individuals.