Duplicate Line Remover
Remove repeated lines from lists without scrambling their original order.
Runs in your browser. Nothing you enter is sent to our servers.
Result
Enter your details and select Run tool.
How to use this tool
Paste a list with one entry per line. Choose whether ABC and abc should count as the same item. The first occurrence is kept, including its original spelling and spacing; subsequent matching lines are removed. Useful for keyword lists, exported tags, and mailing-list cleanup.
Questions and answers
Does it sort the list?
No. This tool preserves the original line order and only removes later duplicates.
What does Ignore case do?
With Ignore case selected, Apple and apple are considered duplicates. The original form of the first line is retained.
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