Two Lists Unique Union

Two Lists Unique Union

Local Processing

Combine two lists into a single deduplicated union set (mathematical union A ∪ B).

How It Works & Processing Standards

Combine two lists into a single deduplicated union set (mathematical union A ∪ B).

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Current Limits

  • Desktop max file size: 50MB
  • Mobile max file size: 20MB

Enter list A and list B one item per line; A comes first in its order, then items only in B. Useful for merging emails, tags or keywords.

What You Can Do

Merge without duplicates
Items in both lists appear once.
Order kept
First-appearance order is preserved.

How to Use Two Lists Unique Union

  1. 1
    Enter list AOne item per line.
  2. 2
    Enter list BThe list to merge in.
  3. 3
    CopyCopy the merged list.

Examples

Fruit lists
Input: A: 사과, 배, 포도 / B: 배, 감, 사과
Result: 사과 배 포도 감

Common Use Cases

  • Merging email lists from two sources
  • Collecting keywords or tags

Frequently Asked Questions (FAQ)

Are items that differ only in case different?

Yes. Items must match exactly. Normalise case before entering them.

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