Compare Two Lists
Compare two lists to find items only in A, only in B, and in both.
About Compare Two Lists
Compare two lists line by line to instantly see what is unique to each and what they share. Paste List A and List B, and the tool computes the set differences — items only in A, items only in B, and items in both — with optional whitespace trimming and case-insensitive matching. It runs entirely in your browser, so your data stays private.
How to use Compare Two Lists
- 1
Paste your first list into List A and the second into List B.
- 2
Choose whether to trim whitespace and ignore case.
- 3
Read the three columns and copy any result you need.
Frequently Asked Questions
How are duplicates handled?
Each list is de-duplicated first, so every item is compared once regardless of how many times it appears in a list.
What does 'In both' mean?
It lists every item that appears in List A and also in List B — the intersection of the two lists.
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