Chatvia is built with bootstrap v5.0.0-beta1 in Nodejs, socket.io with responsive on all devices, and supported with Dark & light modes. It has many features like one-to-one chat – audio – video call, group chat, contacts, send files, Send Emojis, online users, authentication pages, and many more. It is a real-time chat application using socket.io. We have used browser navigator for audio and video call. We didn’t use any third party packages for audio and video call.