Your WhatsApp chats are automatically backed up and saved daily to your phone’s memory. Depending on your settings, you can also periodically back up your WhatsApp chats to Google Drive. If you uninstall WhatsApp from your phone, but don’t want to lose any of your messages, be sure to manually back up your chats before uninstalling.
Exporting chat history from an individual or group chat
Open the individual or group chat.
Tap More options > More > Export chat.
Choose whether to export with media or without media.
An email will be composed with your chat history attached as a .txt document.
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