Duplicate line remover.

What it does. Deletes repeated lines, keeping the first occurrence of each and preserving the original order.

How to use it. Paste your list - keywords, tags, citation lines - and copy the deduplicated result. Lines count as duplicates only when they match exactly after trimming, so near-duplicates still deserve your eye.

Why it matters. Duplicated lines in a list or a data set undermine trust in everything around them. Mechanical deduplication is exhaustive in a way scanning by eye never is.

Your data. The tool runs entirely in your browser - text you paste never leaves the page, and nothing is uploaded to a server.

Good to know

Trailing spaces are trimmed before comparison, so 'item ' and 'item' count as one. Lines that differ by a single character or comma are not duplicates to the tool - scan the near-misses yourself.

Where this fits

Formatting tools are the honest kind of tidy: they change nothing you said, only how it is carried. Run them before proofreading, not after - there is no sense polishing text a cleanup pass is about to reshape, and a clean base makes every later check mean what it says.

Category neighbours: Case converter and Text cleaner

Maintained by the BRYME writing desk.