Remove Duplicate Lines
Remove duplicate lines instantly, with options for case, whitespace and empty lines.
01Input
0
02Output
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This tool runs entirely in your browser. Your input is never uploaded.
How to use
- 1Paste your multi-line text
- 2Toggle case, whitespace and empty-line options
- 3Copy the deduplicated result
FAQ
Is deduplication line-based?
Yes. Each line is treated as one item and the first occurrence is kept; later duplicates are removed.
Does it change the order?
No. The result keeps the original order of first appearances.