Remove duplicate words

Remove duplicate words is a free tool that runs entirely in your browser, with no data ever sent to a server. Remove repeated words within each line.

What it's for

Cleaning up a keyword list pasted multiple times, or fixing a common typo that accidentally doubles a word, without spotting them one by one.

What this tool does not do

This tool only applies the transformation described above, with no spelling correction and no understanding of the text's meaning. A text of tens of thousands of lines is processed instantly ; beyond that, the only limit is your device's memory.

Frequently asked questions

Does punctuation count in the comparison?

Yes : "cat" and "cat," are treated as two different words, since the comma is part of the second one.

Is my data sent to a server?

No : the text you type or paste is processed entirely in your browser, on your device. It is never transmitted to a server.

Do I need to create an account or install anything?

No : the tool works directly on this page, with no sign-up and no install.