ICloud Backup
ICloud backup for contacts is already available in iPhone. Go to app setting tap on the iCloud app. Check that contacts are enabled or not. If they are disabled enable them.
Now go to your computer open iCloud in your internet browser fill the credential and after sign, you will see same as on your iPhone.
iTunes Backup
Backup iPhone contacts in iTunes are also available. To backup contacts go to app setting tap on iCloud. You will see contacts showing green make them off. A message will pop up select keep it on my iPhone. Now plug into your computer to make a backup there.
Go to info tab check-in sync in contacts tab and apply the sync.
Free app for iPhone contacts backup
Basically this app backup contacts on email. There is a free app for backup iPhone contacts. Go to app store and download “My Contacts Backup”.
Open my contacts backup app, tap on backup. It will generate a vcard file for contacts. Now click on the email, it shows some instruction and uplift corner there will be backup click on that make sure that each contact is there. Now type your email address and send it your email.
