Paste both lists
Enter one value per line in List A and List B. Empty lines are ignored.
List comparison tool
Compare Two Lists – Matches & Differences
Paste two lists and see exactly what they share and what is missing from either side. Results preserve the original order and are calculated privately in your browser.
No upload Free to use Works on mobile
Compare tool
Compare Lists
Options
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Comparison results
0 resultsTransfers stay in this browser session; results are never placed in the URL.
How to use Compare Lists
Set matching rules
Enable case-sensitive matching when uppercase and lowercase values should be treated as different.
Review each group
The output separates common values from values found only in either list.
Common uses
Data reconciliation
Compare exports from two systems and spot missing records.
SEO inventories
Compare tracked keywords, URLs, redirects, or sitemap entries.
Email and customer lists
Find shared and unmatched contacts before a migration.
Compare Lists FAQ
Can I compare lists without changing their order? +
Yes. Matching uses normalized values, while displayed results retain the first original value and input order.
Are duplicates counted more than once? +
The comparison output reports unique values so repeated rows do not hide the actual overlap or difference.
Can the comparison ignore letter case? +
Yes. Case-insensitive matching is the default, and case-sensitive matching is available as an option.
Keep working
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