Here’s a quick and simple way to backup all your Google Keep notes.
- On your PC, to to Google Keep and Select All notes by using the keyboard shortcut Ctrl-A
- In the grey bar above the notes, click the three dots
- Select “Copy to Google Doc” and all the notes will be copied to a Google Drive/Docs file.
If you want to download a copy to keep locally (which I recommend), open the Google Doc, click File, Download As, and select your format of choice.