A web chat is a special system or service that allows real time communication for users that use easy-to-access web interfaces.
It’s an internet online chat type that is user-friendly and fully accessible by users, without need to install any specialized software for chatting.
All you need is a webcam (a low cost device that provides real time video & audio to a PC or computer network), a web browser and an Internet connection.
And the most important is that most chat services are free and you’ll always have the latest version of it, because no installations or updates of software are required.
If you grab your embed code and place the code on a website the chat room on the website will also be the same chat room as the chat profile room on the service.