No data downloads from Instagram. No uploading files to sketchy websites. Just one click and you're tracking.
No downloading your Instagram data. No uploading files to websites. Just click a button and start tracking instantly.
Capture a profile's complete follower and following list at any moment. Save as many snapshots as you need.
Select any two snapshots and instantly see who followed, unfollowed, or was removed between them.
Download snapshots as JSON or export follower lists as plain text. Your data, your format.
All data stays in your browser's local storage. Nothing is ever sent to external servers.
Monitor as many Instagram accounts as you want. Each profile has its own snapshot history.
Efficiently fetches follower data using Instagram's web APIs. Optional slow mode for large accounts.
Fully open source on GitHub. Inspect the code, contribute, or fork it. No hidden tracking or shady behavior.
Add FollowDiff to Chrome from the Chrome Web Store. It's completely free and takes just seconds to install.
Visit any Instagram profile or enter a username in the dashboard. Click Start to save a complete snapshot of their followers and following.
Come back later, take another snapshot, and compare any two to see exactly who followed or unfollowed.
FollowDiff runs entirely in your browser. All snapshots are stored locally using Chrome's storage API. We have no servers, no accounts, and absolutely no access to your data.