Remove Duplicate Lines
Remove duplicate lines from a list or block of text. The first occurrence of each line is kept and later repeats are deleted, preserving the original order.
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Characters: 0 | Words: 0 | Lines: 0 | Sentences: 0
Characters: 0 | Words: 0 | Lines: 0 | Sentences: 0
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Examples
apple
banana
apple
cherry apple
banana
cherry one
one
two
two
three one
two
three Frequently Asked Questions
How are duplicate lines detected?
Lines are compared exactly. The first time a line appears it is kept, and any later identical lines are removed.
Does it keep the original order?
Yes. The remaining lines stay in their original order based on first appearance.
Can I sort the lines afterward?
Yes. Use the Sort Lines tool to alphabetize the de-duplicated list.