Shtuff Chat - Free Group / Team chat with persistent history.
Worlize - Worlize is the platform that allows users to communicate with each other in a fun way and play games that are created by the users on this platform.
Anologue - Disposable online chat.
JabbR - A chat application built with ASP.NET and SignalR.
Telegram - Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free.
Chattp - Chattp is the software that simply converts your page into chat by augmenting the browser Windows.