LAN Messenger - LAN Messenger is a decentralized UDP IM-style chat client which supports usernames...
Omegle - Omegle is one of the most popular online chat website allowing user to communicate with anyone without registration.
Softros LAN messenger - LAN messenger for an internal office chat for home or business users. It does not require a server and is very easy to install and use. It supports personal chats, group chats, message brodcasting, files transfer and remote desktop access.
Chatous - Chatous - random chat with real people from all over the world! Make friends with text or video chat.
MyChat - Secure instant messenger for any network
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.