Free Remove Duplicate Lines Tool
Paste a list with repeated lines and get a clean deduplicated version in one click — with optional sorting, case-insensitive matching and blank-line removal.
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How to use
- Paste your text — one item per line.
- Choose options: case-insensitive matching, blank-line removal, sorting, trimming.
- Results update live — click Copy Result to grab the clean list.
Frequently asked questions
Does it keep the original order?
Yes — the first occurrence of each line is kept in its original position, unless you enable sorting.
What does case-insensitive do?
“Apple” and “apple” are treated as the same line, so only the first one is kept.
Can it clean email or keyword lists?
Perfect for that — dedupe keyword lists, email lists, URLs or any line-based data before importing into tools.
Is it free and private?
Yes — unlimited use, no signup, and everything runs in your browser.
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