The HN Solutions Keyword Density Checker instantly analyses your text and shows how often every keyword and phrase appears, with exact counts and density percentages. Check single keywords plus two and three-word phrases, track a specific target keyword, and keep your content optimised without keyword stuffing — all calculated privately in your browser.
Why our keyword density checker is better
- Real-time analysis — counts and percentages update live as you type or paste, with no button to press.
- Phrases, not just words — see the density of 2-word and 3-word phrases, which is how people actually search.
- Target keyword tracking — enter your focus keyword and see its exact count and density instantly.
- Smart stop-word filter — ignore words like “the” and “and” so the results show keywords that matter.
- 100% private — your content never leaves your device; nothing is uploaded or stored.
How to check keyword density
- Paste your article or text into the box.
- Optionally enter your target keyword to track it.
- Switch between 1, 2 and 3-word views to see every keyword’s count and density.
Frequently asked questions
What is keyword density?
Keyword density is how often a keyword appears in your text, shown as a percentage of the total word count. If a keyword appears 5 times in 500 words, its density is 1%.
What is a good keyword density for SEO?
Most SEO professionals aim for roughly 0.5% to 2% for the main keyword. Much higher can look like keyword stuffing, which can hurt rankings.
Does this tool check phrases as well as single words?
Yes. It analyses single keywords plus 2-word and 3-word phrases, so you can see the density of long-tail keywords too.
Is my text uploaded anywhere?
No. All analysis happens locally in your browser, so your content stays completely private.
Is the keyword density checker free?
Yes. It is completely free, with no sign-up and no usage limits.
Explore more free utilities in our SEO tools hub and daily tools hub.
There is no correct keyword density
The idea that a page should hit some percentage comes from search engines of twenty years ago that genuinely counted words. Modern ranking works on meaning, related terms and whether the page answers the query — not on a ratio.
So this tool does not tell you to hit a number. It shows you what your text is actually about, which is a different and more useful question.
What the number is genuinely good for
Three things:
- Catching stuffing. Above roughly 3% for a single phrase, writing almost always reads badly. It is a prose smell, not a penalty threshold.
- Catching absence. If your target phrase appears once in 1,500 words, the page may not be about what you think it is about.
- Seeing what you actually wrote about. The top phrases are a summary of your emphasis. If they are not the topic, your structure has drifted.
Two-word and three-word phrases matter more
Single-word counts are dominated by common words and tell you little. The two- and three-word views are where the real signal is: they show the phrases you are actually repeating, which is closer to how a search engine reads topical focus.
Turn stop words off when you want the raw picture, on when you want meaning.
Semantic coverage beats repetition
A page about image compression that never mentions file size, KB, quality, JPG or upload limits looks thin regardless of how often it says “image compression”. Search engines expect the vocabulary that naturally surrounds a topic.
The practical move is not repeating your keyword more. It is covering the subject properly, which pulls the related terms in by itself. If a related term feels forced when you add it, the section it belongs in is probably missing.
Where it fits in a workflow
After drafting, not during. Write the piece, then check what it turned out to be about. If the top phrases match your intent, you are done; if not, the fix is structural rather than cosmetic.
Pair with the keyword research tool before you write, the cluster tool to decide what belongs on one page, and the word counter for length. Analysis runs in your browser — your draft is never uploaded.