MobaXterm, mRemoteNG, Termux, PuTTY, Remote Desktop Manager, OpenSSH, Tera Term, Termius, Superputty, KiTTY, Gnome Connection Manager, ConnectBot, Asbru Connection Manager, Terminals, Tectia SSH Client, Get Console, SSH Terminal Emulator, WinSSHTerm, WezTerm, Doffen SSH Tunnel, PenguiNet, mRemoteNC, MacTelnet, quickRDP, SSH-RT, Axessh, SSH Cryptonaut, RDPDesk, Token2Shell, AbsoluteTelnet are some alternatives to SecureCRT.