Are there any tools to quickly start a chat?

Question

Chats

There are services for providing chat support. www.chattooltester.com/live-chat-software-reviews
How about services/libraries to quickly raise chat in the app (web, mobile, or desktop)? This is not about a support chat, but about a full-fledged chat between application users.

Answer 1

1) install Jabber server. For example, ejabberd.
2) search Google for "embed jabber chat website". Here you can find:
- candy-chat.github.io/candy
- xmpp.org/xmpp-software/clients (search for the word "browser")

Answer 2

Depending on what degree of readiness you need.
1. renting a server comet on the basis of SaaS, which is much easier, and even cheaper for small projects:
[Ru] comet-server.ru
[En] pusher.com
2. solutions for raising on your vps: Dklab Realplexor or Ratchet.