Keep the first, drop repeats

Remove duplicate lines

Deduplicate lists while preserving the order of each first occurrence.

Runs locallyYour text stays in this tab
0 characters
Local processing

Your deduplicated list and removal count will appear here.

Three simple steps

How to use remove duplicate lines

  1. 1

    Paste one list item per line.

  2. 2

    Choose how spaces, case, and blank lines should be compared.

  3. 3

    Remove duplicates, then copy or download the result.

Useful details

Frequently asked questions

Does sorting happen during deduplication?

No. Original order is kept.

Does the list leave my device?

No. Your text is processed in this browser tab and is not sent to Utilo or stored by this tool.