Remove Duplicate Lines
Remove duplicate lines from a list while keeping the original order. Free unique-lines tool, runs in your browser.
Result
banana apple extra spaces
Processed locally in your browser.
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How to use this remove duplicate lines
Paste a list. Exact duplicate lines are dropped; the first occurrence stays. Order is preserved.
Use this for emails, SKUs, and log lines. Sort first if you want grouped duplicates instead of first-seen order.
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Example
A list apple / banana / apple becomes apple / banana.
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Frequently asked questions
Is matching case-sensitive?
Yes. Apple and apple are different lines.
Are blank lines removed?
Consecutive blanks collapse; extra empty lines are not kept as unique rows.
Is the list uploaded?
Processed locally in your browser. We do not upload the text to compute a result.
Last reviewed 2026-08-19. Results stay on your device unless you copy them elsewhere.