Self-hostable software: XMPP Web Clients (4)

Converse is a modern, feature-rich, fully client-side XMPP chat app for web browsers that can run standalone or be embedded in existing sites.

Movim is a federated blogging and chat platform that serves as a web frontend for the XMPP protocol.

Web frontend from Salut à Toi.

Multipurpose, multi frontend, libre and decentralized communication tool.