Free online keyword density analyzer. Analyze word frequency, keyword density percentage, and n-gram distribution (unigrams, bigrams, trigrams) in any text. Includes stop word filtering and word cloud visualization. Ideal for SEO content optimization. 100% browser-based with zero uploads.
100% browser-based — your data never leaves your device
Analyze keyword frequency and density in any text for SEO optimization.
Copy your article, blog post, or webpage text and paste it into the input area.
Toggle stop word filtering on/off and select n-gram size — unigrams, bigrams, or trigrams.
See each keyword's frequency count and density percentage sorted from highest to lowest.
Copy the keyword analysis as a formatted table or CSV for documentation or further analysis.
Ctrl+Enter to extract keywords
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Keyword stuffing and thin keyword usage are two sides of the same mistake, and both are easy to make without hard numbers. This analyzer measures exactly how often each word and phrase appears so you can tune your content deliberately.
Density analysis fits naturally into the editing stage of content work. The main use cases are analyzing keyword usage in blog posts to avoid keyword stuffing, optimizing landing page content for target keywords at a natural density, and comparing keyword distribution across competitor articles for SEO research. Writers, editors, and SEO practitioners all use it to check whether their text leans too hard on one term or misses a phrase entirely.
The tool is built for depth as well as speed. Word frequency counts are sorted by density percentage, n-gram support covers single words, bigrams, and trigrams so phrase-based keywords appear in context, and the stop word filter removes common words like the, a, is, and and that would otherwise dominate the results. The CSV export makes it easy to file the analysis alongside your content documentation.
The text you run through a keyword analyzer is either unpublished content or competitor research, both of which are sensitive in different ways. An unpublished draft is your in-progress strategy, and pasting competitor articles into an online tool could expose your research approach and the pages you are targeting.
This analyzer processes everything locally in your browser, so your content never leaves your device. You can experiment freely with drafts and research without a third party collecting the text you are analyzing.
Copy your article, blog post, or webpage text and paste it into the input area.
Toggle stop word filtering on/off and select n-gram size — unigrams, bigrams, or trigrams.
See each keyword's frequency count and density percentage sorted from highest to lowest.
Copy the keyword analysis as a formatted table or CSV for documentation or further analysis.
Practical examples to help you get the most out of Keyword Density Analyzer:
Input: 'Learn SEO tips for beginners. These SEO tips will help you rank higher. SEO is essential for online visibility.' Word count: 18 'SEO': 3 occurrences (16.67% density) — high 'tips': 2 occurrences (11.11% density)
Input: "best coffee maker for home" Bigram results: "best coffee": 1 "coffee maker": 1 "maker for": 1 "for home": 1 Trigram results: "best coffee maker": 1 "coffee maker for": 1 "maker for home": 1
Forcing keywords into content to hit a target density harms readability and can trigger search engine penalties. Write naturally and check density afterward, not before.
Common words like 'the', 'a', 'is', 'and' can dominate frequency counts. Enable stop word filtering to get meaningful keyword data focused on content words.
Keyword density measures how often a specific word or phrase appears in your content relative to the total word count. It helps avoid keyword stuffing while ensuring relevant terms are adequately represented.
A natural keyword density of 1-3% is generally recommended. Higher percentages may be flagged as keyword stuffing by search engines.
N-grams are contiguous sequences of n words. Unigrams (1 word), bigrams (2 words), and trigrams (3 words) help you analyze phrase-based keywords and natural language patterns.
No. All analysis happens locally in your browser. Your content never leaves your device.
Shows word frequency counts sorted by density percentage.
Analyze single words, bigrams, and trigrams for phrase-based keywords.
Optionally filter out common English stop words for cleaner analysis.
Copy the keyword analysis as a formatted table or CSV.
Keyword Density Analyzer is useful in a variety of scenarios across different workflows:
Analyze keyword usage in blog posts to avoid keyword stuffing
Optimize landing page content for target keywords with natural density
Compare keyword distribution across competitor articles for SEO research
A natural keyword density of 1-3% is generally recommended. Higher percentages may be flagged as keyword stuffing by search engines.
Use bigram and trigram analysis to see how your target keyphrase appears in context, not just individual words.
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