Free tools, Text
Remove duplicate lines
Paste a list of emails, keywords or anything else. Get it back without repeats, tidy and sorted.
Guides
Questions
Which copy of a duplicate is kept?
The first one. Later repeats are removed and the original order is kept unless you choose to sort.
What does "Ignore case" do?
It treats "Apple" and "apple" as the same line. The first spelling is the one that stays.
How is natural sort different from A to Z?
Natural sort orders numbers the way people expect: item 2 comes before item 10. Plain A to Z puts item 10 first because it compares character by character.
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