Omegle - Omegle is one of the most popular online chat website allowing user to communicate with anyone without registration.
LetsLunch - Do more with your lunch hour. Meet new people.
Chatrandom - Chatrandom provides medium to users for having chat at random with different users around the globe.
GetReal - Meet new people, in person
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.
Over a call - Meet new people every week over 10 min calls