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Remove Duplicate Lines

Remove duplicate lines from text instantly online

Browser-based, files never uploaded Instant results Works on any device

How to use Remove Duplicate Lines

  1. 1Paste text with duplicates
  2. 2Configure options (case sensitive, trim)
  3. 3Click Remove Duplicates
  4. 4Copy unique result

About this tool

Remove duplicate lines from text online. Options for case sensitivity, whitespace trimming, and sorting. Shows count of duplicates removed.

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Frequently asked questions

Does it preserve order?

Yes — original order is preserved unless you enable Sort option.