Docomint

Duplicate Word Finder

Find accidentally repeated words, like "the the", left over from editing or copy-pasting.

🔒 Processed on your device

Catches the specific typo of a word appearing twice in a row ("the the", "is is") — a common slip from editing a sentence and forgetting to delete the old word, or from a copy-paste that duplicated a fragment. It's not a general repeated-word checker, since most words legitimately appear many times across a normal paragraph.

Example: A sentence reading "I think that that is correct" flags the repeated "that that" — a common leftover from editing a sentence and forgetting to delete the old word.

How it works

  1. Paste your text
  2. Immediately-repeated words are flagged and removed in the output
  3. Copy the cleaned result, or check the flagged list first

Frequently asked questions

Does this catch a word repeated elsewhere in the text, not right next to itself?

No — only immediately-adjacent repeats ("the the") are flagged, since a word appearing multiple times across a paragraph is completely normal English, not a typo.

Is my text uploaded anywhere?

No — Duplicate Word Finder runs entirely in your browser using JavaScript/WebAssembly. Your text is never sent to a server.

Does this flag similar words, like \"there\" next to \"their\", or only identical repeats?

Only exact, case-insensitive repeats of the same word immediately next to each other — a different but similar-looking word isn't flagged, since that's a separate kind of mistake, a homophone confusion, not a duplication.

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