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Remove Duplicate Lines

Paste your text and instantly remove duplicate lines — copy or download the result.

Questions answered

Frequently asked questions

Everything you might be wondering about the Remove Duplicate Lines.

Does this preserve the original order?
Yes — the first occurrence of each unique line is kept in its original position; later duplicates are removed.
Is it case-sensitive?
You can toggle case-sensitive matching on or off, depending on whether "Apple" and "apple" should count as duplicates.
Is it free and private?
Yes — free, no sign-up, and everything runs in your browser.
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