Remove Duplicate and Empty Lines

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Enter multiple lines in the input box, click the "Remove Duplicate Lines" or "Remove Empty Lines" button from above.
"Remove Duplicate Lines" will delete the same line that appears after second times and keep the first appearance of the line. The default is case sensitive. If you want to distinguish case from case, you can get rid of the selection.
"Remove Empty Lines" will delete all the lines that have no content.
The line order/sorting will not be affected other than subsequent duplicate lines being deleted.