Remove duplicate lines from text

Two lines are duplicates only when their contents match exactly, including capitalization and spaces. For example, “Apple” and “apple” are different lines, as are “name” and “name ” with a trailing space. The tool does not trim or normalize line contents before comparing them.

When a duplicate is found, the first matching line stays in place and later identical lines are removed. The remaining lines keep their original order.

pear
apple
pear
Apple

pear
apple
Apple

Paste one item per line. If entries that differ only by capitalization or surrounding spaces should count as the same, clean or normalize those differences first with the Text Cleaner or your editor, then remove duplicates.

• Useful for repeated names, URLs, keywords, IDs, or spreadsheet values.
• Blank lines are treated as exact lines too, so repeated blank lines collapse to one.
• Copy or download the unique list when the result looks right.

Deduplication removes later exact matches; it does not merge near-matches, correct spelling, or sort the list. If order matters, the first occurrence determines where each unique value remains.