Remove Duplicate Lines

Delete repeated lines from a list while keeping the first copy of each in its original order.

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How to use Remove Duplicate Lines

  1. Paste your list, one item per line.
  2. Choose whether upper and lower case count as different.
  3. Copy the cleaned list.

Privacy and limits

This tool runs in your browser. What you type is processed on your device and is not sent to our server.

Questions

Is Remove Duplicate Lines free to use?
Yes. You do not need an account and there is nothing to pay.
Does it work offline?
Once the page has loaded, the tool does its work on your device. Some browsers need a connection only to load the page itself.