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Keyword Density Checker

Analyze word frequency, n-grams, and keyword density.

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Reference only. Keyword density stopped being a Google ranking signal when BERT shipped in 2019. Use this to spot repetition or gaps in your own text, not to hit a target percentage.
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How to Use the Keyword Density Checker

Paste your text in the box above and click Analyze. You'll see how often every word and phrase appears, along with its density as a percentage. Switch between the 1-Word, 2-Word, and 3-Word tabs to see single keywords, two-word phrases, and three-word phrases.

Results are sorted by frequency. The density percentage tells you how much of your text is occupied by that keyword or phrase. Use it to spot words you're overusing or underusing.

What Is Keyword Density?

Keyword density is the number of times a word or phrase appears divided by the total number of words (or available positions for multi-word phrases), expressed as a percentage. The formula: (occurrences / total positions) × 100.

It measures how prominent a keyword is within your content. Search engines use word frequency as one signal among hundreds. Keyword density doesn't determine rankings on its own, but extreme values — too high or too low — can work against you.

Beyond Single Words

Single-word analysis only tells part of the story. Google doesn't rank pages for isolated words — it ranks them for phrases. "Content marketing" is a different keyword than "content" or "marketing" alone. That's why this tool analyzes bigrams (2-word phrases) and trigrams (3-word phrases) alongside single words.

Multi-word phrases reveal the actual topics your content covers. If you're writing about "email marketing best practices" and the trigram never appears, you might be dancing around your topic instead of addressing it directly.

What is a good keyword density percentage? +
There's no universal target. The old "2-3% rule" is outdated and was never based on how search engines actually work. Write naturally. If your primary keyword shows up at 1-2% in a well-written article, that's fine. If it's at 5% and the text reads like a broken record, you have a problem. Focus on coverage and clarity, not hitting a number.
What are n-grams? +
N-grams are sequences of n consecutive words from your text. A unigram is a single word. A bigram is a two-word phrase like "search engine." A trigram is a three-word phrase like "search engine optimization." Analyzing n-grams reveals the multi-word phrases that define your content's topics, not just individual word frequency.
Should I remove stop words from the analysis? +
This tool keeps stop words in unigrams for accuracy — "the" being your most frequent word is expected, not a problem. For bigrams and trigrams, it filters out entries where every word is a stop word (like "of the" or "it is a"). This keeps meaningful phrases like "of marketing" visible while hiding the noise.
Can keyword stuffing hurt my rankings? +
Yes. Google has penalized keyword stuffing since the Panda update in 2011. Cramming a keyword into every sentence doesn't signal relevance — it signals spam. Content with unnaturally high keyword density (typically above 3-4%) reads poorly, drives visitors away, and can trigger algorithmic or manual penalties. The fix is straightforward: write for humans, not bots.
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