Dino is a free and open source secure Jabber/XMPP chat client for Linux. XMPP (Extensible Messaging and Presence Protocol) is xml based open communication protocol. It is released under GNU General Public License v3.0. It is based on GTK+ and Vala. It supports end-to-end encryption via OMEMO and OpenPGP. you can also disable read and typing notifications in your chat. It supports Private, group, and public chats, images and files sharing and multiple accounts.