If you're looking to Download WebSSH on your Chromebook laptop Then read the following guideline.

WebSSH Esssential is an awesome SSH, SFTP, TELNET and Port Forwarding client ٩(^‿^)۶ Wherever you are it will be useful to you everywhere, all the time! ◖ SSH Functionalities ◗ ๏ Authentication using : password, challenge (two factor authentication), RSA / DSA / ED25519 / PuTTY Private Key, Port Knocking ๏ Port Forwarding (Local) ๏ Launch a command at connection startup ๏ Emulation : XTERM-COLOR256 / XTERM / VT100 ๏ Profil management : themes, background / foreground colors, font size, backspace sequence ๏ Keyboard : Virtual or Bluetooth ๏ Special keys Esc, Tab, Ctrl, /, :, -, !, |, $, * ◖ SFTP Functionalities ◗ ๏ Create / Rename / Delete files and directories ๏ Edit text files ๏ Upload files from your device to your server ๏ Download files from your server to your device ◖ TELNET Functionalities ◗ ๏ Ability to launch a connection without authentication or using keyboard-interactive authentication ◖ mashREPL ◗ ๏ Use a local terminal without any Internet connection! ๏ Run commands such as : awk, bc, cat, cd, cp, curl, date, dig, du, echo, env, find, grep, head, help, host, ifconfig, ls, mkdir, mv, nslookup, open, openurl, ping, printenv, pwd, rm, sed, setenv, sort, stat, tail, tar, touch, uname, unsetenv, uptime, wc, whoami, whois ◖ Access Protection ◗ ๏ Touch ID / Face ID ๏ Password ◖ Supported protocols ◗ ๏ SSH ๏ SFTP ๏ TELNET ◖ Supported channel types ◗ ๏ Session Shell ๏ Session SFTP ๏ Local Port Forward