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Remove Duplicate Lines

Remove duplicate lines from text

About Remove Duplicate Lines

Remove duplicate lines from any text in your browser. Ideal for cleaning up lists, logs, or data exports.

How to use Remove Duplicate Lines

  1. 1Paste your text with one item per line into the input area.
  2. 2Toggle 'Case sensitive' to control whether 'Hello' and 'hello' are treated as duplicates.
  3. 3Enable 'Trim whitespace' to ignore leading and trailing spaces when comparing lines.
  4. 4The deduplicated result appears instantly with statistics showing how many lines were removed.
  5. 5Copy the result or download it as a .txt file.

Tips

  • Combine with the Sort Lines tool to get a sorted, unique list in seconds.
  • Enable 'Trim whitespace' when pasting from spreadsheets — cells often have hidden trailing spaces.
  • The statistics line shows exactly how many duplicates were found, helping you spot data quality issues.

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OneKitTools TeamUpdated 2.21.4