Handitab

List Comparer

Compare two lists line by line to find the items only in list A, only in list B, and in both, with optional case-insensitive matching.

About List Comparer

A list comparer is a tool that takes two lists and reports which items are unique to each and which they share. Each line is one item. Lines are trimmed, blank lines are ignored, and matching is exact, with letter case ignored by default. The output has three sections with counts: only in A, only in B, and in both. Duplicates within a list are shown once. Partial or fuzzy matches are not detected.

How to use List Comparer

  1. Type or paste into the "List A" box and the "List B" box, or press "Use example" to try it with sample data.
  2. Set "Ignore letter case" if the defaults do not fit.
  3. The result appears below and updates as you type.
  4. Copy the result with the copy button, or download it as a file where that is offered.

Questions about List Comparer

Can I compare two columns from a spreadsheet?

Yes. Copy one column into list A and the other into list B, and each cell lands on its own line. The result shows values missing from either column and the values present in both.

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