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Keyword Density Checker

Most density tools only count single words — which tells you nothing about the phrases you're actually ranking for. This keyword density checker extracts 2-word and 3-word phrases (n-grams) and reports how dense each one is, so you can see whether "machine learning model" or "content marketing strategy" is genuinely the focus of your page. Everything is computed in a Web Worker inside your browser; your draft is never uploaded.

Phrase length

Why Use This Keyword Density Checker?

Search engines stopped caring about isolated keywords years ago — they read phrases. "Running", "shoes", and "running shoes" are three completely different ranking signals, and a single-word counter flattens that distinction into noise. This tool builds n-grams (consecutive word sequences) directly from your text, so the keyword density you see covers 2-word and 3-word phrases, the way Google's models actually process them. Word boundaries come from the Intl.Segmenter API — the W3C standard for language-aware tokenization — so accented Latin, Cyrillic, and CJK text are segmented correctly instead of being mangled by a naïve whitespace split. The heavy n-gram counting runs in a Web Worker, which keeps a 100,000-word manuscript from freezing the page, and none of it ever leaves your machine.

  • True Phrase Analysis: Switch between 1-word, 2-word, and 3-word phrases to see exactly which n-grams dominate your copy. This is the part single-word counters miss — your real target keywords are almost always two or three words long.

  • Standard Density Metric: Each phrase shows its raw count and its density — occurrences divided by total words, times 100 — the same definition every SEO audit uses. A 2% density on a 1,000-word page means that phrase appears 20 times.

  • Smart Stop-Word Filtering: When enabled, the tool drops any phrase that starts or ends on a function word like "the" or "of", so junk n-grams like "of the" disappear while genuine phrases such as "rule of thumb" are preserved intact.

  • Export as CSV: Copy the ranked table straight to your clipboard as comma-separated values, ready to paste into Excel, Google Sheets, or a content brief without any reformatting or manual cleanup.

  • Private by Design: Your text is tokenized and counted entirely inside your browser's JavaScript engine. There's no server request, no logging, and no storage — close the tab and the analysis is gone for good.

How to Use the Keyword Density Checker

  1. 1

    Paste your article, blog post, or landing-page copy into the text area above.

  2. 2

    Choose a phrase length — 1 word for single terms, or 2 to 3 words to audit your real target phrases.

  3. 3

    Toggle "Exclude common words" to hide filler-word phrases, and pick how many top results to display.

  4. 4

    Read the density column to spot over-used or under-used phrases, then copy the table as CSV for your report.

Keyword Density — Frequently Asked Questions

Also try the Word Counter for full readability stats and keyword density on the same text.

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See the phrases you actually rank for — check your copy's density now.