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How to Use
- 1Enter your target keyword or phrase (optional).
- 2Paste your content into the text area.
- 3Review target keyword analysis, top-keyword table, and density indicators.
- 4Use the sample/clear actions and copy the keyword list when needed.
- 5Optimize content based on density and readability guidance.
About Keyword Density Checker
The Keyword Density Checker analyzes keyword frequency with Unicode-aware tokenization, target phrase matching, and a ranked table of top keywords. Enter a target keyword to see its exact count, density percentage, and optimization status.
SEO professionals use density analysis to ensure target keywords appear at the optimal 1–3% range — high enough for relevance signals without triggering over-optimization penalties. The tool highlights low, optimal, and high density zones with color-coded indicators.
All analysis runs locally in your browser. No content is transmitted to any server — safe for checking unpublished articles, client content, and confidential marketing copy before it goes live.
Frequently Asked Questions
What is keyword density?
Keyword density is the percentage of times a target keyword appears compared to the total word count. It helps measure content relevance.
What's the ideal keyword density?
Generally 1-3% for primary keywords. Below 0.5% may be too low, above 3% might be considered keyword stuffing.
Does keyword stuffing hurt SEO?
Yes, excessive keyword repetition (stuffing) can negatively impact rankings and user experience. Focus on natural, valuable content.
Can I analyze multi-word keyphrases?
Yes. You can provide phrase targets, and the checker evaluates occurrences and density for that full phrase.
Is my content sent to a server?
No. All analysis runs locally in your browser. Your text never leaves your device — safe for unpublished and confidential content.