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Duplicate Line Remover
Remove duplicate lines from text quickly. Keep unique lines only, case-sensitive options available. Free online deduplication tool.
Input Lines
Duplicates Removed
Unique Lines
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ℹ️ About Duplicate Remover
Remove duplicate lines from text instantly. Clean up lists, data, and content by eliminating repeated entries. Choose to keep first or last occurrence.
💡 Use Cases
Cleaning email lists of duplicates
Removing duplicate entries from data
Deduplicating log files
Cleaning up copied lists
Preparing unique data sets
📋 How to Use
1
Paste your text with duplicate lines
2
Choose options (case sensitive, trim spaces)
3
Click Remove Duplicates
4
Copy the cleaned result
💎 Pro Tips
- Enable case-insensitive to treat "Apple" and "apple" as duplicates
- Trim whitespace to catch lines that differ only by spaces
- Check the count to see how many duplicates were removed
❓ Frequently Asked Questions
Lines that are exactly identical. Options allow case-insensitive matching.
The first occurrence is kept by default. You can choose to keep the last instead.
This tool removes exact line duplicates. Use other tools for partial matching.