List Comparison Tool

Compare two lists online. Find items only in A, only in B, in both or in either, with a Venn diagram, overlap percentage and case-insensitive matching.

  • Free, no sign-up
  • Runs in your browser
  • Your data stays private

How to use the List Comparison Tool

  1. Paste list A and list B, one item per line.
  2. Pick what to copy: only in A, only in B, in both, all items or differences.
  3. Check the Venn overview and the result tabs.

Why use this List Comparison Tool

  • Venn overviewCircles show counts for only A, both and only B plus the overlap percentage.
  • Five result setsOnly A, only B, intersection, union and the symmetric difference.
  • Forgiving matchingIgnore capital letters and spaces so "Apple" matches "apple ".
  • Tab per resultEach set has its own table you can scroll and copy from.

Frequently asked questions

How do I find items that are in one list but not the other?

Paste both lists and choose "Only in A" or "Only in B".

How do I find the common items?

Choose "In both lists" to get the intersection.

Are duplicates counted twice?

No. Each list is de-duplicated first, so every item counts once.

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