List Intersection
Operations Explained:
- Common Items: Items that appear in both lists (intersection)
- Only in List 1: Items in List 1 that are not in List 2
- Only in List 2: Items in List 2 that are not in List 1
- Unique to Each: Items that appear in only one list (symmetric difference)
Related Tools
What is List Intersection?
List intersection is a tool that helps you compare two lists and find items that appear in both, items unique to each list, or items that differ between them. It's based on set theory operations.
The tool supports multiple comparison operations: finding common items (intersection), items only in one list (difference), and items unique to either list (symmetric difference). You can control case sensitivity and handle various input formats.
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Available Operations
Common Items (Intersection)
Find items that appear in both lists. Useful for finding shared elements, common entries, or overlapping data.
Only in List 1
Find items that exist in List 1 but not in List 2. Helpful for identifying what's missing from the second list.
Only in List 2
Find items that exist in List 2 but not in List 1. Perfect for finding additions or new entries.
Unique to Each (Symmetric Difference)
Find items that appear in only one list but not both. Shows all differences between the two lists.
Frequently Asked Questions
How does case sensitivity work?
When case sensitive is enabled, "Apple" and "apple" are treated as different items. When disabled (default), they're treated as the same item.
What's the difference between intersection and symmetric difference?
Intersection finds items in BOTH lists. Symmetric difference finds items in EITHER list but NOT both - essentially the opposite.
Are duplicates handled in the result?
Yes, the result automatically removes duplicate entries. Each item appears only once in the output, regardless of how many times it appeared in the input lists.
Can I compare lists with different separators?
The tool uses the same separator setting for both input lists. If your lists use different formats, convert them to the same format first or use our List Merger tool.