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Keyword Density Checker

Analyze keyword density and word frequency in your content for SEO optimization

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About This Tool

The Keyword Density Checker is an SEO analysis tool that counts the frequency and density of keywords and phrases in your text. It supports 1-word, 2-word, and 3-word phrase analysis, with automatic stop word filtering and HTML tag stripping, presenting results with visual density bars. All operations are performed locally in your browser — your content is never uploaded to any server.

Key Features

Quick Preview

Use Cases

seo

Frequently Asked Questions

What is keyword density?

Keyword density is the percentage of times a keyword appears in a text relative to the total word count. It is an important SEO metric — a density between 1% and 3% is generally recommended, as higher values may be flagged as keyword stuffing by search engines.

What does stop word filtering do?

Stop words are high-frequency words with little semantic meaning, such as a, the, and is. Filtering them out ensures the analysis only shows meaningful keywords, making the density data more valuable for SEO insights.

What is the difference between 1-word, 2-word, and 3-word phrase analysis?

1-word analysis counts individual word frequency, 2-word analysis counts adjacent two-word combinations, and 3-word analysis counts adjacent three-word combinations. Multi-word phrase analysis helps discover long-tail keywords and phrase patterns.

Can I analyze HTML page source code?

Yes. With the 'Strip HTML tags' option enabled, the tool automatically removes HTML markup and analyzes only the plain text content. You can paste web page source code directly for analysis.

Can I export the analysis results?

Yes. The tool supports exporting results as CSV or JSON files, and you can also copy them to the clipboard with one click for use in other tools or reports.