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Duplicate Line Remover

Remove repeated lines from pasted text while keeping the first occurrence. Useful for keyword lists, exports, logs, and one-item-per-line data.

Text Tools Runs locally No data sent
remove duplicateskeep firstline cleanupbrowser only
Input
0 lines
Input Lines0
Unique Lines0
Duplicates Removed0
Result
0 lines
i
Use Ignore case if Apple and apple should count as the same line. The tool always keeps the first matching line it sees.

What is Duplicate Line Remover?

Duplicate Line Remover scans one-item-per-line text and removes repeated rows while keeping the first occurrence. It is useful for keyword lists, exports, logs, and any pasted text where duplicates need to be cleaned quickly.

How to Use Duplicate Line Remover

  1. Paste the text list you want to clean into the input area.
  2. Choose whether to trim each line, ignore case, or remove blank rows.
  3. Review the deduplicated result instantly in the output panel.
  4. Copy the cleaned list when it looks right.

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Understand Duplicate Line Removal ▾
Example
Input Apple Orange apple Orange Banana
Output Apple Orange Banana
Common Use Cases
  • Clean one-item-per-line exports before importing them elsewhere
  • Remove repeated keywords or tags while keeping the first occurrence
  • Deduplicate copied logs, notes, or spreadsheet rows
  • Quickly sanitize long pasted lists without writing a script
Why Use This Tool
  • Faster than manually spotting repeated rows in long pasted lists.
  • Useful for exports, logs, tags, and keyword sets.
  • Runs locally so your source text stays on your device.
Frequently Asked Questions
Does it keep the first or last duplicate?

It keeps the first matching line and removes later repeats.

Can it ignore case differences?

Yes. Turn on Ignore case if Apple and apple should count as the same line.

Will blank lines be removed too?

Yes. Remove blank lines is enabled by default, and you can turn it off if you want to preserve empty rows.

Is my text uploaded anywhere?

No. Duplicate removal runs entirely in your browser.