Original list
0 lines
Not saved
Duplicate Line Remover
Remove repeated entries from a one-item-per-line list and choose exactly how matches are compared and retained.
Result
0 lines
About this tool
By default, surrounding spaces are ignored, blank lines are removed, and the first occurrence stays in its original position. Case remains significant unless you choose to ignore it. These comparison options do not rewrite the retained line. Your text is processed only in your browser and is never sent to a server.
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Frequently asked questions
What is this tool used for?
It removes repeated entries from one-item-per-line lists such as email addresses, product names, URLs, and keywords.
Does it change the original order?
The original order is preserved by default. You may also sort the result in ascending or descending order.
Is my list sent to a server?
No. Duplicate detection and draft storage take place only in your current browser.
A matching line is not proof of a matching person or product
This tool removes lines using string comparison. It cannot decide whether two people or products with the same name are identical. Ignoring surrounding spaces changes the comparison key, not the text of the retained line. Compare the original list and removed count before using the output.