Use cases

Common jobs with ListDiff—comparing files you already have, or Instagram lists from your official data download.

Files

Compare two local files

Paste or upload TXT/CSV and compare on your device.

Compare HTML files as lists

Turn list-like HTML into lines, then compare.

Compare Instagram lists

Start here: download your data, then compare in the browser.

Followers vs following

Which side is A, which is B, and what each result tab means.

Who doesn’t follow you back

No third-party app—official download only.

Who unfollowed you

Compare two follower downloads from different dates.