Duplicate Word Finder

Paste your text below: the tool highlights every word that repeats and shows how many times it appears. Everything happens in your browser — your text is never sent anywhere.

Frequently asked questions

Is my text saved or sent to a server?
No. All processing happens in your browser via JavaScript: the text you paste never leaves your computer.
Is there a text length limit?
No, you can paste very long texts: processing is still instant since it happens locally.
What does "ignore common words" do?
It excludes very frequent articles, prepositions and conjunctions (e.g. "the", "a", "and") from the count, useful for finding more meaningful repetitions.

Feedback or issues?