Duplicate Word Finder

Find accidental repeated words like 'the the' in your writing instantly.

Paste your text: Case-insensitive (catch 'The the')

How to use

Paste your text and click Find Duplicates. Each repeated word is shown with its line number — everything runs in your browser.

What counts as a duplicate?

Two identical words right next to each other, like 'and and' or 'to to'.

Is the check case-sensitive?

Not by default — 'The the' is caught too. Toggle it off for strict matching.

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