<a href="https:&#x2F;&#x2F;github.com&#x2F;sdelements&#x2F;lets-chat" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;sdelements&#x2F;lets-chat</a> is open source and supports XMPP as well. Tried it, it&#x27;s very slick.