How to transfer entire iMessage conversations to computer? I am getting a new iPhone come next month. I want to save all of my nostalgic conversations for the future.  Is there a way to transfer an entire chat log to the computer in plain text?  Or will I have to painstakingly take screenshot after screenshot as I scroll up in the text history?
Your iMessages are already on your Mac, assuming you've got an iCloud account.

Go to ~/Library/Messages/Archive.