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List Comparator

Compare two lists with clear matching options and a structured summary of shared, added, and removed items in your browser.

🔒 This tool runs entirely in your browser. Your files are never uploaded to a server.

List comparator

Paste two lists, one item per line, to see what's shared, added, and removed.

Shared (0)

    Added in B (0)

      Removed from A (0)

        How List Comparator works

        1. Paste one item per line into each list.
        2. Choose the match rules that fit your data.
        3. Review common and unique items in a clear summary.

        FAQ

        How are list items matched?

        Choose exact matching or ignore capitalization before comparing one item per line.

        Are my lists uploaded?

        No. This interface is designed for browser-only comparison.

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        Embed this tool

        Paste this on your own site — it stays free, and every file still stays in your visitor's browser, not yours or ours.