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Duplicate Word Finder

Duplicate Word Finder

Spot and highlight duplicate words in your text instantly, with adjustable rules and a live list of repeats with counts.

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Duplicates

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Visual Workflow

How the Duplicate Word Finder works

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Input Text

Paste your content

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Tokenize Words

Split into tokens

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Apply Filters

Length & repeats rule

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Highlight Duplicates

Mark repeated words

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Display Results

Show counts list

How the Duplicate Word Finder works

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1) Scan & tokenize words

As you type, Duplicate Word Finder reads your text and extracts word tokens (letters/numbers). Punctuation and spacing are kept as-is for display.

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2) Normalize for matching

If Case sensitive is off, Duplicate Word Finder compares words in lowercase so “Very” and “very” count as the same word. When enabled, they are treated as different.

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3) Apply your filters

Min Length ignores short words, and Min Repeats sets how many times a word must appear before it is considered a duplicate.

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4) Count duplicates

Duplicate Word Finder builds a frequency map (word → count). Words that meet your thresholds are marked as duplicates.

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5) Highlight in the editor

A highlight layer sits behind the textarea. Duplicate words are wrapped in colored “pills” so you can spot repeats without changing your original text.

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6) Show a ranked list

On the right, duplicate words are listed with their total counts, sorted from most frequent to least. Colors match the highlights for quick scanning.

Undo / Redo history

Every edit is saved so you can undo or redo changes while keeping the highlights and counts updated.

Live stats

The words and characters counters update in real time to help you track text length as you edit.

Privacy-friendly

Everything runs in your browser while you type—your text is processed instantly on-page for highlighting and counting.

Frequently Asked Questions

What is a Duplicate Word Finder tool?
A Duplicate Word Finder is a tool that scans your text to detect repeated words, highlights them in the editor, and lists duplicates with their counts so you can clean up your writing faster.
How does the Duplicate Word Finder tool work?
It extracts word tokens from your text, optionally normalizes case (when case sensitivity is off), counts word occurrences, then highlights words that meet your Min Length and Min Repeats thresholds and shows them in a ranked duplicates list.
Can the Duplicate Word Finder tool be used for any type of text?
Yes—use it for essays, emails, blog posts, marketing copy, captions, notes, or any pasted content where you want to spot repeated words and improve readability.
Is the Duplicate Word Finder tool user-friendly?
Yes—it updates in real time as you type or paste, shows live word/character counts, lets you adjust duplicate settings with sliders, and includes undo/redo plus font-size controls for comfortable editing.
What are the benefits of using a Duplicate Word Finder tool?
It helps you remove accidental repetition, improve clarity and flow, tighten writing, catch overused words, and quickly audit long text using instant highlights and a count-based duplicates panel.
How do I find repetitive words in Microsoft Word?
You can use Word’s Find feature (Ctrl+F / Cmd+F) to search for a word, but this tool is faster for repetition because it automatically detects duplicates across the entire text, highlights them, and shows counts in one place.