Remove Duplicate Lines
Paste your text and instantly remove duplicate lines. Options for case sensitivity, trimming, and empty line removal.
Input Text
Result
FAQ
How does duplicate detection work?
Each line is compared against all previous lines. The first occurrence is kept; subsequent duplicates are removed.
Is the comparison case-sensitive?
By default yes. Uncheck 'Case sensitive' to treat 'Hello' and 'hello' as the same line.
Can I also remove empty lines?
Yes. Check 'Remove empty lines' to strip all blank lines from the output.
Is there a line limit?
No hard limit. The tool runs in your browser, so performance depends on your device. Thousands of lines process instantly.
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