To know who unfriended and removed you from his friend list have been a difficult task but now you can easily find out the culprit.
“Who deleted me” is an app and chrome extension through which you will be alerted when anyone from your friends removes you from his account.
When you download the app it collects data from your account making a list of your friends. So whenever anyone removes you from his friend list this app alerts you.
But it does not help in finding those who deleted you before the app was downloaded.