Does the result keep duplicates?
No. Results are unique line values based on the selected comparison rule.
List Compare and Merge
Workflow
Compare two line-based lists and output union, intersection, or differences.
Output
Output will appear here.
Both lists, comparison parameters, and output results stay in the current browser and are not uploaded to Your Free Tools or third parties.
List Compare and Merge
Compare two name lists, keyword lists, email lists, links, or any line-based data. The tool cleans each line according to your settings and outputs unique local results.
list comparelist intersectionlist unionlist differencecompare two lists
Use cases
- - Find items that appear in both lists or only one list.
- - Merge two keyword lists while removing duplicates.
- - Compare tasks, links, emails, or SKU lists.
How to use
- 1Paste the first list into List A and the second list into List B.
- 2Choose union, intersection, A minus B, or B minus A.
- 3Set trimming and case sensitivity, then copy the output list.
Features
List operation: Union / Intersection / A minus B
Find items that appear in both lists or only one list.
Merge two keyword lists while removing duplicates.
Compare tasks, links, emails, or SKU lists.
FAQ
Which order does the output use?
Intersection and A minus B follow List A order. Union keeps List A first, then adds new values from List B.
Are uppercase and lowercase treated as the same?
By default, yes. Turn on case sensitivity if Apple and apple should be different items.