Who doesn't follow you back

Drop in the followers export from your account and get the list of people you follow who don't follow you, plus the ones you never followed back.

Showing sample data. Drop your own export above to see your real list.
How to get your files
  1. In the app, go to your profile, open the menu, then Accounts Center. On a computer you can go straight to Accounts Center › Your information.
  2. Tap Your information and permissions, then Export your information (older versions call it Download your information).
  3. Create an export, pick your account, and choose Export to device.
  4. Under Customize information, clear everything except Followers and following.
  5. Set Date range to All time and Format to JSON, then start the export.
  6. You'll get a notification and email when it's ready, usually within an hour. Download the ZIP and drop it above.

The files live at connections/followers_and_following/ inside the ZIP. Large accounts get split across followers_1.json, followers_2.json and so on. Drop them all at once.