UBUseBrowserTools

Keyword Density Checker

Check keyword density, repeated words and frequency in pasted text locally. Filter common words, compare percentages and improve your copy with this free tool.

100% private — runs in your browser, nothing is uploaded
Total words
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Unique words
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Sentences
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Top keywords

Density uses all words in the pasted text.

Paste text above to calculate keyword frequency and density.

Text analysis happens locally in your browser. Keyword density is a writing check, not a ranking guarantee.

What is a keyword density checker?

A keyword density checker counts the words in a piece of writing and shows how often each one appears. The result is expressed as a count and a percentage of the total words. It is a useful editing view for articles, landing pages, product descriptions and drafts where you want to spot repeated terms or check whether an important topic is represented naturally. This tool analyzes pasted text in your browser, without uploading it.

Check repeated words in your text

  • Paste or type your draft into the text box.
  • Choose whether to exclude common words such as the, and or with.
  • Set a minimum word length to focus the report.
  • Review the keyword list, counts and density percentages.

The total word count remains the denominator for every percentage, even when you filter common words out of the table. This makes the density figures easier to compare. Exact duplicates are grouped regardless of letter case, so Product, product and PRODUCT count together. The tool also reports unique words and an approximate sentence count for quick context.

Use density as an editing signal

Keyword density is not a target to force into a page. Repeating a phrase too often can make copy awkward and less helpful for readers. Search engines use many signals beyond word frequency, including relevance, structure, links and how well a page answers a query. A density report is more valuable as a way to notice accidental repetition, missing terminology and overly generic wording.

Look at the highest entries first. If a nonessential word dominates the list, rewrite a few sentences or use clearer alternatives. If your main topic barely appears, make sure the page genuinely addresses it rather than inserting it mechanically. Related terms, concise headings and useful explanations normally create more natural coverage than repeating one exact phrase.

Review your final draft

Run the checker after substantial edits, since a small change in a short passage can move a percentage noticeably. Consider the page's purpose and audience: product specifications may repeat technical names more often than a conversational guide. Keep proper nouns and brand names where they serve the reader. The report does not judge quality or predict rankings; it simply gives you a transparent count to support better editorial decisions.

Frequently asked questions

How is keyword density calculated?

It divides a keyword's count by all words in the pasted text, then multiplies by 100.

Should I aim for a specific keyword density?

No universal percentage guarantees rankings. Use the report to improve clarity and avoid unnatural repetition.

Why are some common words missing?

The common-word filter is enabled by default. Turn it off to include words such as the, and and with.

Is my text uploaded?

No. Analysis runs locally in your browser.

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