01
The short answer
If you want to know who unfollowed you on Instagram, compare an older follower list with a newer follower list from the same profile. An account that appeared in the older list but is missing from the newer list is a lost follower between those two snapshots.
Older followers − Newer followers = follower relationships that disappeared between the two exports.
This is different from simply checking who does not follow you back. A person can be a non-follower without ever having followed you in the first place.
02
Why one Instagram export is not enough
A single export is a snapshot of your account data at one point in time. It can show your current followers, following accounts and mutual relationships, but it does not contain the history needed to prove that a specific person used to follow you.
For example, if an account appears in your Following list but not your Followers list today, that only means the account does not follow you now. It does not tell you whether they unfollowed you yesterday, never followed you at all or stopped following months ago.
If your goal is only to see current one-way relationships, read how to see who doesn’t follow you back on Instagram.
03
How to compare two follower snapshots
The reliable method is to save follower data from one date, then request another Instagram export later and compare the two sets.
- Request an Instagram data export that includes followers and following.
- Save that data as your first snapshot.
- Request a fresh export from the same Instagram profile later.
- Compare the newer followers list against the older one.
- Review the accounts that disappeared and the accounts that were newly added.
The two snapshots need to belong to the same Instagram profile. Mixing exports from different profiles would produce meaningless results.
05
What a follower comparison can—and cannot—tell you
Two snapshots can show that a follower relationship was present in the older export and missing in the newer one. That is enough to identify a change between those two points in time.
The comparison cannot tell you:
- the exact minute or hour the relationship changed;
- why the person stopped following you;
- whether the account was deleted, disabled or otherwise changed;
- what happened between snapshots that was not captured in either export.
Social Janitor is intentionally conservative about these limits. It shows what can be supported by your exported data rather than inventing explanations the files do not contain.
06
How often should you take follower snapshots?
There is no single correct schedule. The useful interval depends on how closely you want to track changes.
- Occasional review: take a new snapshot whenever you want a fresh picture of your account.
- Monthly tracking: useful for seeing broader follower trends without creating lots of snapshots.
- Campaign or growth periods: take snapshots before and after a period you specifically want to compare.
More frequent exports narrow the time window in which a follower change happened, but they still do not create live monitoring.
07
What to do next
If you do not yet have a first snapshot, start by requesting your current Instagram followers and following data. Once you have a baseline, future exports become useful comparisons instead of isolated lists.
If your immediate goal is simply to clean up your current Following list, you may not need to wait for a second snapshot. A current export can already show everyone you follow who does not follow you back.
Use the free preview to inspect your data, or see example results to understand the lists and snapshot comparisons first.

04
Track follower changes with Social Janitor
Social Janitor can save snapshots from your Instagram exports and compare a later snapshot with an earlier one. That gives you a clearer view of what changed without manually comparing usernames across raw files.
A comparison can show gained followers and lost followers between two imported exports. Your Instagram account is not monitored live; the result only reflects the data contained in the snapshots you imported.
Open the free preview and import your current Instagram export. A future export can then be compared against that snapshot.