Google Chat is a messaging platform developed by Google that allows you to communicate with others in real-time, either one-on-one or in groups. It is available as a standalone app for desktop and mobile, as well as integrated into other Google apps like Gmail and Google Workspace.

To use Google Chat, you'll need a Google account. Once you're signed in, you can start using the app by following these steps:

• Open Google Chat on your computer or mobile device.
• Click on the "+" icon in the bottom left corner of the screen to start a new conversation.
• Enter the name or email address of the person or group you want to chat with.
• If you're starting a new group chat, you can add more people by clicking on the "+" icon next to the "To" field.
• Type your message in the chat box and hit enter to send it.

You can also use Google Chat to share files, make voice or video calls, and collaborate with others in real-time using features like threaded conversations, emojis, and Google Drive integration.

Google Chat also allows you to create "rooms," which are persistent chat channels that can be used for ongoing conversations around a specific topic or project. This can be a useful way to keep team communication organized and easily accessible.

In addition to the standalone app, Google Chat is integrated into other Google apps like Gmail and Google Workspace, so you can easily switch between chat and email without having to leave your inbox.