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 Density Analyzer is a free online seo tool that analyze keyword frequency and density in any text for seo optimization. It works entirely in your browser — no downloads, no installations, and no server uploads required. digital marketers, content strategists, web developers use Keyword Density Analyzer when they need a fast, privacy-respecting way to process seo data without installing additional software. It supports capabilities such as word frequency, n-gram support, stop word filter. Additional features include export report. Common use cases include 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. All processing happens locally using modern browser APIs, which means your data never leaves your device. This makes Keyword Density Analyzer ideal for working with sensitive data, proprietary code, or any situation where privacy matters.
Keyword Density Analyzer is a free online seo tool that helps you analyze keyword frequency and density in any text for seo optimization. Key capabilities include word frequency, n-gram support, stop word filter. All processing is done locally in your browser — no data is uploaded, stored, or shared with any server. There are no sign-ups, no file size limits, and no hidden charges. It is commonly used to analyze keyword usage in blog posts to avoid keyword stuffing.
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.
| Category | Details |
|---|---|
| Input Limits | Maximum page size: Browser memory bound |
| URL limit: Unlimited | |
| Supported Formats | HTML, XML (sitemaps), Plain text, URLs |
| Browser Engine |
|
All operations run entirely in your browser using built-in SEO APIs. No server uploads, no data storage, and no third-party requests.
Keyword Density Analyzer is ideal when you need to analyze keyword usage in blog posts to avoid keyword stuffing without installing software or uploading data to a server. Since everything runs in your browser, there is no setup time and no risk of your data being stored on external servers. For for monitoring live search performance, consider using Google Search Console. For for comprehensive technical SEO crawls, Screaming Frog may be a better fit. Keyword Density Analyzer fills the gap between heavyweight desktop tools and insecure online services that require uploading your data.
No. Keyword Density Analyzer processes everything entirely in your browser using JavaScript. Nothing you type, paste, or upload is ever transmitted to any server. Your data never leaves your device.
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.
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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