How to use the Remove duplicate lines
- 1Paste your list, one item per line.
- 2Choose whether to ignore case, trim spaces and drop empty lines.
- 3Copy the cleaned list.
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Frequently asked questions
Which copy is kept?
The first occurrence of each line is kept and later repeats are removed, so the order of your list does not change.
Is my data sent anywhere?
No. Everything is calculated in your browser on your own device — nothing you type or upload is sent to a server.