Omegle - Omegle is one of the most popular online chat website allowing user to communicate with anyone without registration.
RoomChat - No sign up chatrooms with just a URL and your handle
Chatrandom - Chatrandom provides medium to users for having chat at random with different users around the globe.
Chatty - Chat with strangers all around the world in Messenger
MeowChat - MeowChat is kind of instant messaging platform that offers the fun and entertaining way to the strangers across the globe to come and interact with the other strangers like them.
Ablo - Say hello to the world