Duplicate Line Remover
Paste a list and remove repeated lines instantly, keeping the first occurrence of each. Runs entirely in your browser.
How it works
- 1
Paste your list
One item per line.
- 2
Choose case sensitivity
Treat "Apple" and "apple" as the same line, or not.
- 3
Copy the cleaned list
Only unique lines remain, in their original order.
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Watermarks added
2h
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Devices supported
Frequently asked questions
Yes, the first occurrence of each unique line is kept in its original position.
Cleaning up duplicate lines
This is useful for cleaning up email lists, keyword lists, CSV exports, or any list-style data where duplicate entries snuck in from copy-pasting or merging multiple sources.
The first occurrence of each line is kept and later duplicates removed, preserving the original order rather than sorting the list.