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ListDiff

Free list comparer for two lists

Looking for a list comparison tool? Paste or upload two lists, clean up the obvious formatting issues, and leave with results you can copy into a spreadsheet—no signup.

What you can bring in

  • Copy-paste, one item per line.
  • TXT, CSV, or JSON files.
  • A paste from Excel—see how Excel paste works.
  • CSV rows with extra columns (compare just the first column if that’s the ID).

What you get back

  • Only in A / only in B — the differences.
  • In both — the overlap.
  • Everything from both sides, or everything that isn’t shared.
  • Duplicates inside A or B, if those matter to you.

Tip: how to get results into Excel · what each setting does.

Paste your lists here

List A
0 lines
List B
0 lines
Click “Compare lists” to generate results.

FAQ

What can I paste or upload?

Text, TXT, CSV, JSON, or an Excel paste. You can trim spaces, skip blank lines, and download each result.

Is it free?

Yes—no account. More on privacy: Is ListDiff safe?

Also see: compare two lists · compare without uploading