Omegle - Omegle is one of the most popular online chat website allowing user to communicate with anyone without registration.
Tiny Flashlight + LED - Tiny Flashlight + LED is free to use application that can be used anywhere else, having nicely built-in functionality.
Chatous - Chatous - random chat with real people from all over the world! Make friends with text or video chat.
Hmu - Hmu is a social app by SC Friends that enables users to search for new friends by viewing a list of users from all around the globe and tap on the desired profile to engage in live chat with them.
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.
Flashlight - Control your Mac with a keystroke.