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Remove Duplicate Lines

Local processing — your files never leave your device

Paste your list and get a clean version with every repeat removed, plus options to drop empty lines and normalize spacing.

How to use

  1. 1Paste your list, one item per line.
  2. 2Enable the options you want.
  3. 3Click "Process" and copy the result.

Features

  • Deduplicate while preserving order
  • Remove empty lines
  • Count of removed lines

When to use this tool

Use it to clean lists of links, headings, or product IDs, to remove repeats after merging spreadsheets, or to deduplicate a set of keywords.

FAQ

Are similar lines affected by different spacing?

Enable the "ignore extra whitespace" option so lines are considered identical after trimming spaces.

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