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Duplicate Line Remover
Remove duplicate lines from your text
Original: 0 lines
Result: 0 lines
Removed: 0
About the Duplicate Line Remover
Remove duplicate lines from text online. Paste a list and keep only unique lines, keep the first occurrence of each line, or show only the lines that are duplicated. Ignore case, trim whitespace and remove empty lines for accurate results.
Counters show how many lines were in the original, how many remain and how many were removed — useful for cleaning email lists, keyword lists, log files and exported data.
How to use Duplicate Remover
- Paste text. Paste the list, one item per line.
- Choose the mode. Keep unique lines, keep first occurrence or show only duplicates; set options.
- Remove and copy. Click “Remove Duplicates” and copy the result.
Features
- Keep unique lines
- Keep first occurrence
- Show only duplicates
- Case-insensitive matching
- Trim and remove empty lines
- Removed-line counter
Frequently asked questions
How do I remove duplicate lines?
Paste your text and click “Remove Duplicates”. Each line will appear only once.
Can I find which lines are duplicated?
Yes. Select “Show only duplicates”.
Is my data uploaded?
No. Everything runs locally in your browser.