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Free Online Keyword Density Checker

Paste your content to analyze keyword density and word frequency. Get a detailed breakdown with total words, unique words, and a visual bar chart of top keywords.

What Is Keyword Density?

Keyword density is the percentage of times a specific word appears in your content relative to the total word count. For example, if a keyword appears 5 times in a 500-word article, its density is 1%. Understanding keyword density helps you optimize content for search engines without over-optimizing.

Ideal Keyword Density for SEO

Most SEO experts recommend keeping primary keyword density between 1-2%. More important than hitting a specific percentage is writing naturally and covering the topic comprehensively. Modern search engines use semantic analysis and understand synonyms, so focus on topical relevance rather than exact keyword repetition.

How to Use This Tool Effectively

Paste your entire article into the text area and click Analyze. The tool shows total word count, unique keywords excluding common stop words, and a visual breakdown of most-used terms. Check that your target keyword appears in the top results at 1-2% density. If any keyword exceeds 3%, consider replacing some instances with synonyms to avoid over-optimization.

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Frequently Asked Questions

What keyword density should I aim for?
Aim for a primary keyword density of 1-2%. Google does not use a specific threshold. Focus on writing naturally while ensuring your target keyword appears in the title, first paragraph, and a few times throughout the content.
What are stop words and why are they excluded?
Stop words are common words like the, is, at, and on that appear frequently in all content. They are excluded because they carry little SEO value and would dominate results, hiding your meaningful keywords.
Can high keyword density hurt my SEO?
Yes. Keyword stuffing is a violation of Google's spam policies and can result in penalties or lower rankings. If your keyword density exceeds 3%, search engines may consider it over-optimized.
Does this tool check phrase density too?
This tool analyzes individual word frequency. For phrase-level analysis of two-word or three-word phrases, you would need an n-gram analyzer. However, single-word density gives a good starting point for optimization.
How often should I check keyword density?
Check keyword density during the editing phase of content creation. Analyze your draft before publishing and compare against competing pages that rank well for your target keywords.