List Comparison Tool
Find shared items, A-only items, a union or a symmetric difference of two lists.
Result
How to use
Paste lists A and B, then choose a set operation.
Run the tool to calculate or transform the input.
Copy the result or save it as a text file.
FAQ
What rules does this tool use?
One line is one item. Duplicate entries collapse while the first appearance order is retained.
What are the limits?
Case-insensitive matching is optional. This compares exact entries, not approximate meanings.
Are my inputs uploaded?
Tool inputs are processed in your browser. Advertising makes separate requests as described in the privacy policy.