Duplicate Line Remover — Clean Lists in One Click
Dedupe email lists, keyword lists, logs — keep original order, trim blanks, see exactly how many lines went.
Quick answer: Free duplicate-line remover: paste a list, remove repeats (case-sensitive option), keep order, see removed count — instant.
–original lines
–unique lines
–removed
How to use
- Paste lines.
- Toggle case-sensitivity / trim.
- Copy the clean list.
About this tool
Cleaning a 5,000-line list shouldn't need Excel tricks. Paste, click, done — order preserved, blanks trimmed, stats shown.
FAQ
Does it keep the original order?
Yes — first occurrence wins; no sorting.
Case-sensitive?
Toggle it: 'Apple' vs 'apple' — your choice.
Trims spaces?
Optional trim handles trailing-space duplicates.
Big files?
Handles tens of thousands of lines instantly — all local.
Download result?
Copy button + select-all; paste anywhere.
Offline?
Yes.
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