How to save your chat history
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. Or in the case of our group members need a full back up to keep safe. Once the backup is in Google Drive (or another back up location) you can attach to an email, send to yourself or another.
Back up chats
Go to WhatsApp > tap More options > Settings > Chats > Chat backup > BACK UP.
Export chat history
You can use the export chat feature to export a copy of the 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. which you can then send to yourself or another person for safe keeping. Repeat the process for each conversation.