Keyword Density Checker
Analyze keyword frequency for SEO
Keyword Density Checker
Analyze keyword frequency for SEO optimization
About This Tool
Analyze keyword frequency and density in your text. Helps optimize content for SEO by identifying the most used words and their percentage of total word count. Common stop words are automatically excluded.
Privacy & Security
All keyword analysis happens entirely in your browser using JavaScript. Your content is never uploaded to our servers, stored in databases, logged, or shared with third parties. When you close the page, your content is permanently gone. Completely private and secure.
About Keyword Density Checker
Optimize your content for search engines with our free keyword density checker. Whether you're writing blog posts, product descriptions, landing pages, or SEO-optimized articles, our tool analyzes how often keywords and phrases appear in your text. Get detailed reports on single-word keywords, 2-word phrases (bigrams), and 3-word phrases (trigrams) with density percentages, helping you avoid keyword stuffing while ensuring adequate keyword coverage. Perfect for content writers, SEO specialists, digital marketers, and bloggers who want to create search-engine-friendly content that ranks well without over-optimization penalties.
Key Features
Multi-Word Analysis
Analyzes 1-word, 2-word, and 3-word keyword phrases simultaneously
Density Percentage
Shows exact keyword density percentage for each term and phrase
Frequency Count
Displays total occurrence count for every keyword and phrase
Sorted Results
Automatically sorts keywords by frequency or density for easy analysis
Stop Word Filtering
Optionally exclude common words (the, and, is) from analysis
Word Count Stats
Shows total word count, unique words, and character count
Export Results
Download keyword density reports as CSV or copy for spreadsheets
Highlight Keywords
Visually highlight specific keywords in your text for context
Ideal Density Guide
Shows recommended density ranges for SEO best practices
Real-Time Analysis
Updates keyword density as you type or edit content
How to Use the Keyword Density Checker
Paste Content
Enter or paste your article, blog post, or web page content
Configure Options
Choose to include/exclude stop words and set minimum word length
View Analysis
See keyword density percentages and frequency counts for all terms and phrases
Optimize Content
Adjust overused keywords and strengthen underused target keywords based on results
Frequently Asked Questions
What is keyword density and why does it matter for SEO?
Keyword density is the percentage of times a keyword or phrase appears in your content compared to the total word count. It matters for SEO because it helps search engines understand your content's topic. However, modern SEO emphasizes natural, valuable content over specific density targets. Aim for 1-3% density for primary keywords to avoid over-optimization while ensuring relevance.
What's the ideal keyword density percentage?
There's no universal 'perfect' density, but most SEO experts recommend 1-3% for primary keywords, 0.5-1.5% for secondary keywords. More important than hitting exact percentages is writing naturally and comprehensively about your topic. Google's algorithms are sophisticated enough to understand context and semantic relationships, not just keyword repetition.
What are 2-word and 3-word phrases (bigrams and trigrams)?
Bigrams are two-word phrases that appear together (e.g., 'digital marketing', 'content strategy'), while trigrams are three-word phrases (e.g., 'search engine optimization', 'social media marketing'). Analyzing these multi-word phrases is important because users often search for specific phrases, not just individual keywords.
Should I exclude stop words from analysis?
It depends on your goals. Stop words (the, and, is, of, to, etc.) are common words with little SEO value. Excluding them gives clearer insight into meaningful keyword usage. However, including them can be useful when analyzing specific branded phrases or exact-match long-tail keywords that naturally contain stop words.
Is this keyword density checker free?
Yes! Our keyword density checker is completely free to use with unlimited analysis and no registration required.
Will my content be stored or shared?
No. All analysis happens entirely in your browser using JavaScript. Your content is never sent to our servers, stored in databases, or shared with anyone. Your text remains completely private.
Does it work on mobile devices?
Absolutely! The keyword density checker is fully responsive and works perfectly on smartphones, tablets, and desktop computers.
Common Use Cases
- Blog Post Optimization: Ensure target keywords appear enough for SEO without keyword stuffing
- Product Descriptions: Balance product keywords for e-commerce SEO while maintaining natural writing
- Landing Page SEO: Optimize landing pages for specific keyword targets and conversion goals
- Content Audits: Analyze existing content to identify keyword optimization opportunities
- Competitor Analysis: Check competitor content keyword density to understand their SEO strategy
- Meta Description Writing: Ensure meta descriptions include target keywords at appropriate density
- Academic Writing: Verify term usage frequency in research papers and academic content
- Ad Copy Testing: Analyze keyword usage in PPC ad copy and marketing materials
Why Use Our Keyword Density Checker?
Manually counting keywords in lengthy articles is time-consuming and impractical, yet keyword optimization remains crucial for SEO success. Our free keyword density checker instantly analyzes your content for single words, phrases, and multi-word combinations, providing precise density percentages and frequency counts in seconds. Whether you're optimizing blog posts for search rankings, ensuring product descriptions hit the right keyword balance, auditing existing content for SEO improvements, or learning content optimization best practices, you'll get actionable insights immediately. Stop guessing whether you've used keywords too much or too little - see exactly where you stand and make data-driven content optimization decisions that improve search visibility without triggering over-optimization penalties.