Compare Two Lists
Local ProcessingFind lines common to two lists, lines only in one, or lines in either but not both.
How It Works & Processing Standards
Find lines common to two lists, lines only in one, or lines in either but not both.
Tool processing runs in your browser. If you create a calculator or conversion share link, its values are included in the URL. See the privacy policy for account, analytics and advertising data.
Current Limits
- Maximum input length: 2,000,000 characters
Enter two name or keyword lists to see what overlaps and what is missing. Choose common, one-side-only or symmetric difference under "Task".
What You Can Do
- Common lines
- Items in both A and B (intersection)
- Only in one list
- Items only in A and items only in B, listed separately.
- Symmetric difference
- Everything that is in only one of the lists, as one list.
How to Use Compare Two Lists
- 1Choose a taskPick the relationship you want.
- 2Enter both listsOne item per line in list A and list B.
- 3CopyCopy the items found.
Examples
Fruit in both lists
Input: A: 사과, 바나나, 포도 / B: 바나나, 키위, 포도
Result: 바나나 / 포도
Fruit in only one list
Input: A: 사과, 바나나, 포도 / B: 바나나, 키위, 포도
Result: Only A: 사과, only B: 키위
Common Use Cases
- Matching event sign-ups against attendees
- Seeing overlap between two keyword lists
- Finding files missing after a deployment
Frequently Asked Questions (FAQ)
What about case or space differences?
Any difference makes items distinct. Normalize spaces and case first for accurate results.
How do I match on a CSV column?
Use the CSV List Matcher to compare selected columns.