How to use
Each line is one item. Optionally ignore surrounding whitespace or case, or remove blank lines, then choose Remove duplicates. The first occurrence is retained.
Example
Three lines A, B, A become two lines A, B.
REMOVE DUPLICATES
Remove Duplicates
Remove duplicate lines while keeping the first occurrence and original order.
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Keep in mind
Ignoring surrounding whitespace affects comparison only; the retained text is unchanged. Line endings become LF. Results remain in their original order and are not sorted.
Common questions
Why are Apple and apple both present? Exact comparison is the default. Enable Ignore case to treat them as the same value.