Answer first
Choose JSON when a tool needs to read structured follower and following records.
JSON preserves field names, arrays, usernames, links, and timestamps in a predictable machine-readable form.
File requirements
Keep the downloaded ZIP intact and let the analyzer find relevant JSON entries.
- JSON format
- Followers records
- Following records
- Consistent account and scope
- Original ZIP or both JSON files
Worked check
Read the relationship state correctly
The check compares two present-tense sets. “Outgoing only” says where the username appears now; it says nothing by itself about intent or history.
Use the original archive; inspect copies only if troubleshooting.
Choose the next step
Review the relevant group and leave intentional one-way relationships alone.
Common questions
Is “not following back” the same as “unfollowed”?
JSON preserves field names, arrays, usernames, links, and timestamps in a predictable machine-readable form.
Will this tool unfollow anyone?
No. CheckFollowBack produces a review list and never performs an Instagram action.
Do I need to sign in?
No. Use the relationship JSON from an official export; never enter an Instagram password into this site.