Your data is processed exclusively on your device — no files are sent to any server.
Find out who
doesn't follow you back
Upload your Instagram export files and find out instantly. Your data stays 100% on your device — never sent to any server.
1.247
Followers
312
Not back
935
Mutual
How it works
Three steps. No sign-up.
From zero to results in under 2 minutes.
Export your data
In Instagram, go to Accounts Center → Download your information. Select JSON format and wait for the email.
Accounts Center → Download your info → JSON
Upload the files
Select the followers.json and following.json files from the ZIP Instagram sent you.
followers_1.json + following.json
See the results
In under a second you'll see who doesn't follow back, copy usernames, and open profiles.
Instant results · Export to CSV
Free · No sign-up · Instant results
Privacy by design
Built for people who value privacy
Every technical decision was made with security in mind. There is no way your data can leak — it never leaves your device.
No login or password
We never ask for account access. Zero credentials required.
No Instagram API
We don't use any official or unofficial Instagram API.
No database
Your data doesn't exist on any server. Nowhere.
Auditable
Logic runs in your browser. Inspect everything in DevTools at any time.
Local processing
FileReader API + pure JavaScript. Zero network requests with your data.
Files stay with you
JSON files never leave your device. Ever.
Verify it yourself
Open DevTools (F12) → Network tab → upload your files. You will see zero requests made with your data. 100% local processing.
0
requests
Frequently asked questions
Full transparency about how the tool works.
Discover the truth about your followers
Takes less than 2 minutes. No risk, no password, nothing collected.
No collection · No API · 100% local · Open Source soon