Merge Two Text Lists (Union)

Combine two lists into a single consolidated list with optional duplicate removal.

How It Works & Processing Standards

Combine two lists into a single consolidated list with optional duplicate removal.

Your input data is never sent to any server and is securely processed on your device.

Current Limits

  • Maximum input length: 2,000,000 characters

Merge Two Text Lists (Union) is a 100% free, browser-based online utility. All calculations and file conversions run locally inside your browser (Local-First) without sending data to remote servers, keeping your documents and inputs strictly private.

How to Use Merge Two Text Lists (Union)

  1. 1
    Enter Both ListsPaste List A and List B.
  2. 2
    Choose DeduplicationCheck unique to remove duplicate lines.
  3. 3
    Copy Merged ListSave your unified list.

Common Use Cases

  • Consolidating subscriber lists from two campaigns into one unified database
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