Categories

List Comparer

Input is processed locally Runs in your browser

Compare and combine two lists.

Return all unique items from A and B, reading A first.

One item per line. Blank lines are ignored. Duplicates keep their first spelling and order, with A read before B.

Run a comparison to see unique item counts.

Paste one or both lists, then select Compare lists.

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Compare two lists

  1. Paste one item per line into list A and list B.
  2. Choose union, intersection, a directional difference or symmetric difference, then set trim and case options.
  3. Run the comparison, review the unique counts, and copy or download the result.

Frequently Asked Questions

Does this tool require an account?
No account or payment is required. Input and output limits are shown in the workspace.
Where is my input processed?
The conversion runs in your browser. This tool does not send its input to a processing API. Site analytics and normal page requests are separate from your tool input.
How do I save the result?
Use the copy or download controls after a successful operation. For feed tools, export records the displayed response rather than requesting new data.