Compare Two Lists
Paste two lists to instantly find unique, common, and duplicate items.
Your lists stay on your device. Nothing is uploaded.
Lists or settings changed. Select Compare Lists to update the results.
Results
Comparison based on your current settings. Items keep their original order.
Only in A
Common
Only in B
Duplicates
Items that appear more than once in the same list. Active comparison settings also apply here.
Duplicates in A
Duplicates in B
How to compare two lists
Paste one item per line, choose the matching options, and select Compare Lists. You’ll see items unique to each list, items shared by both lists, and any duplicates.
How matching works
Whitespace and empty lines are ignored by default. Case remains significant unless you enable Ignore case. Turn off “Ignore empty lines” if blank entries should be treated as list items.
FAQ
Is my data uploaded?
No. The comparison runs locally in your browser.
Does order change?
No. Results preserve the first occurrence order from the source list.
Can I export results?
Use Copy below each result to copy it to your clipboard. Downloadable files are not available yet.