Remove Duplicate Lines

Paste your list or block of text and the tool keeps the first time each line appears while dropping every later repeat. The order of what remains is preserved, so it does not shuffle your list. Copy the deduplicated result in one click.

It keeps the first occurrence and removes the ones after it. Because the surviving lines stay in their original positions, a sorted or deliberately ordered list keeps its shape.

Yes. Lines have to match exactly to count as duplicates, so "Apple" and "apple" are treated as two different lines. Trailing spaces count too, so if near-identical lines are not being removed, check for stray whitespace (our whitespace remover can tidy that up first).

No. Unlike sorting, this preserves the original order and only strips the repeats. If you also want the result alphabetized, run it through our alphabetize list tool afterward.

No. Everything runs in your browser, so your list never leaves your device or reaches a server.