Compare Lists

Paste two lists below to find items that are common or unique to each list.

List A

List B

Ignore case Trim whitespace Skip empty lines

Only in List A

In Both Lists

Only in List B

How to Use the List Comparator

Enter or paste your items into List A and List B, with one item per line. The tool instantly compares the two lists and shows you which items appear only in List A, which appear only in List B, and which appear in both. Use the options to ignore case differences, trim extra whitespace, or skip blank lines.

What This Tool Does

The list comparator performs a set comparison between your two lists. It identifies the intersection (items in both) and the differences (items unique to each list). Duplicate items within the same list are treated as a single entry. This is useful for comparing email lists, inventory items, feature lists, or any other line-separated data.