Find Common Lines (Intersection)

Extract lines that appear in both text A and text B (set intersection).

How It Works & Processing Standards

Extract lines that appear in both text A and text B (set intersection).

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

Find Common Lines (Intersection) 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 Find Common Lines (Intersection)

  1. 1
    Enter Both ListsPaste list A and list B.
  2. 2
    Find Common LinesIntersection lines are computed.
  3. 3
    Copy Shared LinesCopy the list of shared entries.

Common Use Cases

  • Finding shared customers who appear on both mailing lists
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