For users who do not care with whom to communicate, will fit almost any chat.
But some user wants to filter the list of strangers, and to avoid unwanted contacts.
But if you do not want to communicate with more people, you can restrict access to your chat room by password.
Great interest attaches to a form of online chat as Chat Roulette - random search of a stranger.
The platforms for doing so are extensive, such as writing reviews of products, commenting on forums, and chatting with strangers.