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.
Shtuff Chat - Free Group / Team chat with persistent history.
JabbR - A chat application built with ASP.NET and SignalR.
Discord History Tracker - Discord History Tracker is a great tool that enables you to select chat history and save it in your private conversations, servers, groups, and then view it anytime without needing an internet connection.
OpenPalace - OpenPalace is an open-source platform that is used to chat in a 2D graphical way by selecting any avatar.
Telegram - Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free.