Instagram will not show you this. It shows the two lists it is built from, and leaves the arithmetic to you — which is fine at 200 accounts and impossible at 4,000.
The answer is a set subtraction: everyone in your following list who does not appear in your followers list. Gramlens collects both and does the subtraction locally.
One click, three steps under it
Press the button and the extension runs the whole chain: collect your following list, collect your followers list, subtract one from the other. You do not have to run the two exports yourself or line them up afterwards.
The chain survives closing the side panel. Long lists take a while, and the job continues rather than restarting.
The result is a list, not a screen
This is the part that separates it from the phone apps in this category. The non-followers list is saved as a real list, alongside your exports — which means it can be:
- Exported to CSV, Excel or JSON like any other list
- Enriched with Deep Parse, so you can see follower counts and decide who is worth keeping
- Used as a source for a bulk unfollow, with a whitelist for accounts you never want to touch
- Compared later against a fresh run, to see what changed
Most tools show you a scrollable screen and stop there.
Non-followers and unfollowers are not the same list
Worth separating, because the two get confused constantly:
- Not following back — accounts you follow that never followed you. A snapshot of the present, computed from your two current lists.
- Unfollowed you — accounts that did follow you and then stopped. That requires history: two snapshots of your followers taken at different times, compared.
This page is the first. The second needs at least two exports on different days, and lives in the unfollowers tracker.
Read the list before you act on it
A non-follower is not automatically a mistake. The list will contain accounts you follow deliberately and would be worse off without — a brand you buy from, a photographer whose work you like, someone who simply has no reason to follow you back.
Bulk unfollowing the whole list is the fastest way to gut your own feed. Sort by follower count, look at who is actually there, and mark the ones you want kept before running anything. The whitelist exists for exactly this and is honoured on every subsequent run.
If you do unfollow in bulk, pace it. Instagram's action limits do not care that the accounts deserved it.
FAQ
Do I need to run two exports myself?
No. One button runs the whole chain — following, then followers, then the subtraction. Both source lists are saved too, so you can reuse them.
How is this different from an unfollower tracker?
This shows who never followed you back. An unfollower tracker shows who dropped you, which needs two snapshots taken days apart. Both exist in the extension; they answer different questions.
Do you need my Instagram password?
No. Both lists are read through the session you are already signed into, in your browser. There is no login form, and neither list is uploaded anywhere.
Can it unfollow them for me?
Bulk unfollow is a Pro feature, with a whitelist, a speed preset and a review step before anything runs. It is deliberately separate from the checking — seeing the list and acting on the list are different decisions.
Does the accuracy depend on how big my lists are?
The subtraction is exact for the lists it has. What varies is how completely those lists were collected on a very large account, which is why the export shows its own record counts.
Is it free?
The check itself works on the Free plan, which covers 500 records per parse and 50 analysis views a month. On Free, the Analyze tab shows accounts from the last seven days; Plus and Pro remove both limits.
Will the accounts know I checked?
No. Nothing is sent to anyone — the two lists are read the same way scrolling them would read them, and compared on your machine.