Remove duplicate lines
Remove duplicate lines from a list and keep the original order if you need it.
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How it works
Removes repeated lines from a list and keeps the first occurrence of each, preserving order. Choose whether it is case-sensitive, trims whitespace, and keeps blank lines.
Example
apple, pear, apple, grape (one per line) → apple, pear, grape. With "Apple" and "apple" and case-insensitive mode, those also count as duplicates.
Frequently asked questions
Which copy is kept?
The first of each group. Later repeats are removed.
Does it work for email or URL lists?
Yes. Turn on trimming and turn off case sensitivity to clean email lists with mixed formatting.