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Duplicate Line Remover

v1.2.1

Remove duplicate lines while preserving configurable ordering behavior.

Removes duplicate lines from text while preserving insertion order (first occurrence kept), or optionally sorts and deduplicates. Useful for cleaning lists, log entries, and code snippets.

How to use
  • →Paste your text — all duplicate lines are removed instantly.
  • →Toggle case-insensitive mode to treat "Apple" and "apple" as duplicates.
  • →Use the sort option to additionally sort the de-duplicated lines alphabetically.

Paste text above and click Deduplicate to remove duplicate lines.