Keyword Density CheckerAnalyze keyword density in your content with single, 2-word, and 3-word phrase breakdowns.
Keyword Density Checker
Analyze keyword density in your content with single, 2-word, and 3-word phrase breakdowns.
Paste your content
Paste your article or page content into the text area.
Set target keyword
Optionally enter a target keyword to check its specific density.
Review analysis
See single keywords, 2-word and 3-word phrase frequencies with density percentages.
What Is Keyword Density Checker?
The Keyword Density Checker analyzes your content to reveal how frequently specific words and phrases appear relative to the total word count. It calculates density for single keywords, 2-word phrases (bigrams), and 3-word phrases (trigrams), helping you identify over-optimization or under-use of target keywords. The ideal keyword density is 1-3% for primary keywords โ high enough for relevance signaling but low enough to avoid keyword stuffing penalties.
Why Use Our Keyword Density Checker?
- Analyzes single keywords, 2-word, and 3-word phrase density
- Target keyword tracking with specific density calculation
- Configurable minimum word length and stop word filtering
- Color-coded density indicators (optimal, high, over-optimized)
- Visual density bars for quick comparison
Common Use Cases
SEO Content Optimization
Ensure target keywords appear at optimal 1-3% density.
Content Editing
Identify keyword stuffing before publishing.
Competitor Analysis
Analyze competitor content keyword usage patterns.
Academic Writing
Check for unintentional word repetition in papers.
Technical Guide
Keyword density is calculated as (keyword count / total words) ร 100. The tool filters common stop words (the, is, and, etc.) and allows configurable minimum word length to focus on meaningful terms. For 2-word and 3-word phrases, minimum occurrence threshold is 2 to filter noise. Google doesn't use a specific density threshold, but content that unnaturally repeats keywords (over 5%) may trigger spam detection. Modern SEO emphasizes semantic relevance and natural language over exact keyword matching โ use related terms, synonyms, and topically relevant phrases alongside your target keyword.
Tips & Best Practices
- 1Target 1-3% density for primary keywords โ avoid exceeding 5%
- 2Use the 2-word and 3-word phrase analysis to find natural keyword variations
- 3Check that your target keyword appears in the first and last paragraphs
- 4Focus on semantic relevance over exact keyword repetition
- 5Compare your density with top-ranking competitor pages
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SEO ToolsFrequently Asked Questions
QWhat is the ideal keyword density?
QDoes Google use keyword density for ranking?
QShould I optimize for 2-word and 3-word phrases?
About Keyword Density Checker
Keyword Density Checker is a free online tool from FreeToolkit.ai. All processing happens directly in your browser โ your data never leaves your device. No registration required. No ads. Just fast, reliable tools.