Skip to content
ListDiff

Home List comparison tool

A simple tool for comparing lists

Exports are rarely neat. This page is for when you need to paste (or upload) two lists, clean up the obvious formatting issues, and walk away with results you can copy into a spreadsheet.

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