Remove Duplicate Lines
Paste a list of lines to instantly remove duplicates while keeping the original order — entirely in your browser.
Result will appear here
Frequently Asked Questions
Does this keep the original order?
Yes — it keeps the first occurrence of each unique line and preserves the overall order, just dropping later repeats.
What does the case sensitive toggle do?
When on, "Apple" and "apple" are treated as different lines. Turn it off to treat them as the same duplicate.
Does this trim whitespace before comparing?
No — lines are compared exactly as typed, so trailing spaces make two otherwise-identical lines count as different. Trim first if you want strict matching.
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