See who unfollowed you
on Instagram
Upload your Instagram data export and instantly see unfollowers, mutuals, and fans. No login, no password — runs entirely in your browser.
Trusted by Instagram users worldwide
We compare who you follow vs who follows you — upload your ZIP to begin.
Don't have your ZIP yet?
Need help getting your Instagram ZIP?
Follow these simple steps in the Instagram app to get your data.
Request Your Data
Go to Instagram Settings → Account Center → Your information and permissions → Download your information. Select only "Followers and following", choose JSON format.
Wait ~5 Minutes
Instagram will email you the download link within 2-5 minutes. You can also check the "Export your information" section in the app.
Upload & Analyze
Download the ZIP file and upload it above. Your analysis will appear instantly — all data stays on your device.
The only safe way to check
No Password Required100% Safe
Most unfollower apps demand your Instagram credentials — a massive risk. FollowCheck is different: we analyze your official data export directly in your browser.
Completely Private & LocalZero Server Uploads
Your data never leaves your device. All calculations run directly in your browser. No passwords, no server uploads, no leaks.
Instant Free AnalysisFree & Unlimited
Get a full breakdown of your unfollowers, mutuals, and one-sided follows — all for free, instantly, and privately.
Frequently Asked Questions
Is it safe to use this unfollower tracker?
Yes! Unlike other apps, we don't ask for your login credentials. We only process the ZIP file from your own Instagram data export — nothing is sent to any server.
How often can I check my unfollowers?
As often as you like! Request a new data export from Instagram whenever you want to see the latest changes in your follower list.
Does Instagram know I'm using this?
No. Since you're downloading your own data and analyzing it locally, Instagram has no way of knowing you're using a third-party tool.
What you get
- Doesn't Follow Back
- Mutuals
- You Don't Follow Back
- Export to CSV
- 100% Private
- Search & Filter