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Remove Duplicate Lines Online – Clean & Deduplicate Text

Remove duplicate lines from text and clean your list with options like trim spaces, ignore case, normalize spaces, and remove empty lines. Free and privacy-safe.

Input

Local processing

Trim spaces Normalize spaces Ignore case (A=a) Remove empty lines

Options apply in this order: Trim → Normalize spaces → Ignore case → remove duplicates → Remove empty lines.

Output

Keeps order

How it works

We split your text into lines, optionally normalize each line, then keep the first occurrence and remove later duplicates. Everything runs locally in your browser.

FAQ

Free? Yes.

Safe? Yes. No server upload.

Order preserved? Yes.

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