If you want to backup all stored passwords from chrome. Do the following
- Go to chrome://settings/passwords on chrome
- Click on the 3 dots above your saved passwords.
- when clicked an option for exporting password will show up. click on it
- when clicked you will get a warning that Your passwords will be visible to anyone who can see the exported file. Cancel or Export password??
- To export your password to computer click export passwords. you will be asked to provide your computer password.
- your passwords will be exported as a .csv file. save the file to wherever you want on your computer.
Make sure you keep the file safe.