Keyword Density Checker Online
Paste your content into the panel above to see every word ranked by frequency and density percentage. The stop words toggle filters out common connective words so results focus on terms that carry meaning. Calculations run in your browser. Nothing is uploaded.
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Paste your text on the left to instantly extract and calculate your keyword density.
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How keyword density is calculated
Keyword density is the number of times a word appears in a text divided by the total word count, expressed as a percentage. If a 1,000-word article uses the word “coffee” 15 times, the keyword density for “coffee” is 1.5%. The formula is straightforward but the interpretation requires more context than the number alone provides.
The tool counts every word in your text, groups identical words together, calculates each word’s percentage of the total word count, and sorts the results from highest to lowest density. The table shows the keyword, how many times it appears, and its density percentage. Stop words are filtered out by default so common words do not crowd out meaningful terms in the results.
What the stop words toggle does
Stop words are high-frequency connective words that carry little meaning on their own: “the”, “and”, “a”, “in”, “of”, “to”, “is”, “it”, “for”, and similar function words. In any English text, these words will always dominate the frequency table regardless of what the content is actually about. Filtering them out lets you see the words that define the topic of your text rather than words that just hold sentences together.
Turn stop words back on when you need the raw frequency data for every word in the text, including function words. This is useful when checking for specific grammatical patterns, running a full text analysis, or comparing the output with another tool that includes stop words in its count.
What keyword density actually means for SEO
Keyword density was a significant ranking factor in early search engines. You could improve rankings by repeating a keyword more often. Google’s algorithms have moved well past that. Modern search uses semantic analysis, entity recognition, and the full context of a document to understand what a page is about. The exact number of times a keyword appears matters far less than whether the content genuinely covers the topic.
That said, density is still a useful diagnostic tool. A primary keyword appearing at 0.1% in a 2,000-word article suggests the topic is only lightly touched. The same keyword at 6% suggests the text is repetitive in a way that reads poorly to both users and crawlers. Most SEO practitioners use 1% to 2.5% as a rough guide for a primary keyword, but these are observations about what tends to appear in well-ranking content rather than targets to hit precisely.
The more useful question is whether the content also uses related terms and synonyms naturally. A page about “espresso machines” that only ever says “espresso machines” and never mentions “espresso maker”, “coffee machine”, “portafilter”, or “crema” is likely missing the semantic breadth that helps Google understand the page’s coverage. Checking density is one diagnostic. Reading the text out loud is another.
What keyword stuffing looks like
Keyword stuffing is the practice of forcing a keyword into content at an unnaturally high frequency. It produces text that reads poorly to humans and signals to search engines that the content was written to manipulate rankings rather than inform readers. At densities above 4% to 5% for a single term, the repetition becomes noticeable to most readers. Above that, it often reads as spam.
Common patterns include repeating the target keyword in every sentence when a pronoun or synonym would be more natural, loading the footer or sidebar with keyword-rich text, and writing meta descriptions that repeat the same phrase multiple times. If a single word in your results sits significantly above 3%, read those sentences back and check whether each use of the word feels natural or forced. For over-used words or phrases in your writing at the vocabulary level rather than the SEO level, the word frequency counter gives a writer-focused view of which words you are relying on too often.
How SEO specialists use this tool
Before publishing, paste the full page content here to confirm the primary keyword appears at a reasonable frequency and that no single word dominates the density table in a way that looks unnatural. Check that closely related terms also appear, which indicates the content covers the topic with enough breadth.
During a content audit, paste existing pages to identify which terms they rank strongly for in their own text versus what keywords you intended them to target. A page that was written to rank for “home espresso machine” but shows “coffee maker” as the highest-density term may have a topic focus mismatch. For total word count context alongside the density data, the word counter shows the full stats in one view.