Dino is a modern open-source chat client for the desktop.
Ferdi
Ferdi es un navegador de mensajería que te permite combinar tus servicios de mensajería favoritos en una sola aplicación.
polari
IRC client which enables you to chat with people around world through large chatrooms or via private messaging.
Jami
Comparte, de forma libre y privada. Mensajería descentralizada con VOIP.
Fractal
Fractal is a Matrix messaging app for GNOME written in Rust. Its interface is optimized for collaboration in large groups, such as free software projects.