Question 1

Does it preserve the original order?

Accepted Answer

Yes, the first occurrence of each line is kept in its original position.

Question 2

Is the comparison case-sensitive?

Accepted Answer

By default yes, but you can disable 'Case sensitive' to treat different cases as duplicates.

Question 3

Is this tool free?

Accepted Answer

Yes, this tool is completely free and works directly in your browser.

Remove Duplicate Lines

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