OpenSSH is a BSD/Linux implementation of SSH1 and SSH2 for encrypted terminal connections, tunneling and file transfers. It includes the sshd server, scp and sftp, and various utility tools such as ssh-add, ssh-agent, ssh-keysign, ssh-keyscan, ssh-keygen, and the sftp-server.
lterm is a graphical terminal emulator based on vte. It's purposed as ssh client but also works locally. It contains some convenience features to ease repetitive tasks, such as bookmarks and keeping terminal sessions, a built-in sftp function, remote file editing and directory management, an expandable protocol set, a tabbed interface, customizable colors and mouse behaviour, and full screen mode.
ToroFtp is opensource cross-platform FTP SFTP FPTS client