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Home/SEO Tools/Keyword Density Checker
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Keyword Density Checker

Analyze keyword density and frequency in your content. Find top 1-word, 2-word, and 3-word phrases.

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Paste your content above to analyze keyword density.

About Keyword Density Checker

Free keyword density checker that analyzes your text content to find the most frequently used words and phrases. Paste your article, blog post, or web page content to instantly see keyword frequency and density percentages for 1-word, 2-word, and 3-word phrases. The tool automatically filters out common stop words, shows total word count, unique words, character count, and sentence count. View the top keywords ranked by frequency with their density percentage. Search for a specific keyword to see its count, density, and every position where it appears. Perfect for SEO content optimization, ensuring your target keywords have the right density (1-3% recommended), and identifying over-optimized or under-used terms.

Frequently Asked Questions

What is keyword density?
Keyword density is the percentage of times a keyword or phrase appears in your content relative to the total word count. For example, if 'seo tools' appears 5 times in a 500-word article, its density is 1%. Most SEO experts recommend keeping primary keyword density between 1-3%.
What are stop words and why are they filtered?
Stop words are common words like 'the', 'is', 'at', 'and', etc. that add no SEO value. The tool filters them out so you can focus on meaningful keywords that impact your search rankings.
What is a good keyword density for SEO?
Most SEO experts recommend 1-3% density for your primary keyword. Going above 3% can look like keyword stuffing to search engines and may hurt your rankings. Focus on natural writing that includes your target keywords contextually.
What are 2-word and 3-word phrases (n-grams)?
Beyond single keywords, the tool analyzes 2-word phrases (bigrams) like 'content marketing' and 3-word phrases (trigrams) like 'search engine optimization'. These multi-word phrases often represent more specific search queries and can reveal your content's topical focus more accurately than single words.
Is this keyword density checker free?
Yes, completely free with no signup. Paste any amount of text and get instant analysis of keyword frequency, density percentages, and phrase patterns. All processing happens in your browser - your content is never sent to any server.

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