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Remove Duplicate Lines

Remove duplicates and empty lines, and sort lists.

0 lines → 0 lines

How to use

  1. 1Paste your list, one item per line.
  2. 2Choose options: ignore case, trim spaces, remove empty lines.
  3. 3Pick a sort order if you want one.
  4. 4Copy the cleaned list. The summary shows how many duplicates were removed.

Frequently asked questions

Which copy of a duplicate is kept?

The first time a line appears is kept, and later repeats are removed, so your original order stays unless you sort.

What does “Ignore case” do?

It treats “Apple” and “apple” as the same line, keeping the first one you wrote.

What is natural sort?

Natural sort orders numbers the way people expect: item2 before item10, instead of item10 before item2.

Can I clean a list of emails or phone numbers?

Yes. Paste one per line, turn on Trim and Ignore case, and duplicates are removed instantly.

Is there a size limit?

It handles hundreds of thousands of lines in your browser. Nothing is uploaded.

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