With Rocket.Chat it is easy to organize multi-user-conversations in channels to provide great communication environments for different topics, projects and teams or even private channels for selected and permitted users only.
For direct one-to-one communication there is Off-the-Record encryption to secure your private messages.
With WebRTCs peer-to-peer capabilities, Rocket.Chat lets you chat face-to-face with your friends and colleagues using your webcam and microphone. With screensharing you can stream live-video of your screen or only specific windows on your desktop to your chat-mate.
You can setup your Rocket.Chat server to provide the Livechat-feature for your website. Your visitors will be able to contact you in real-time, using a pop-up support chat.
Rocket.Chat is available for download as native client applications on Linux, Windows and macOS. Mobile apps can be found in their respective stores for iOS and Android.