Remove Duplicate Lines Tool
Remove duplicate lines from your text while preserving the original order. Perfect for cleaning up lists and data sets.
Enter Your Text
Results
Enter your text above to remove duplicates
Duplicate Removal Tips & Best Practices
How It Works
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Preserves Order: First occurrence of each line is kept
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Case Sensitivity: Choose whether to treat "Hello" and "hello" as different
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Empty Lines: Option to remove or keep blank lines
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Statistics: See exactly how many duplicates were removed
Common Use Cases
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Email Lists: Remove duplicate email addresses
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Data Cleaning: Clean up CSV or list data
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Code Comments: Remove duplicate comments or lines
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Inventory Lists: Clean up product or item lists
Best Practices
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Use case insensitive for most general cleaning tasks
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Remove empty lines for cleaner results
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Review the results to ensure important data wasn't lost
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Use case sensitive when dealing with case-sensitive data