Keyword Density Checker
Analyze keyword frequency, density percentage, and n-gram phrases with automatic stop word filtering.
How to Use the Keyword Density Checker
Our free keyword density checker is an essential tool for SEO professionals, content writers, and bloggers who want to optimize their content for search engines. It analyzes your text in real time and shows you exactly which keywords and phrases appear most frequently.
Getting Started
Paste your article, blog post, or any text into the text area above. The tool immediately begins analyzing keyword frequency and displays results in a sortable table. Common stop words are automatically filtered out so you see only meaningful keywords.
Using N-Gram Analysis
Switch between 1-word, 2-word, and 3-word analysis using the n-gram buttons. Single-word analysis shows individual keyword frequency. Two-word analysis reveals important phrases like "content marketing" or "search engine." Three-word analysis uncovers longer phrases like "search engine optimization" that may represent valuable long-tail keywords.
Understanding Density Percentages
Each keyword shows its density as a percentage of total words. For SEO, your primary target keyword should have a density of 1 to 2 percent. If a keyword exceeds 3 percent, search engines may consider it keyword stuffing, which can negatively impact rankings. The visual bars make it easy to compare relative keyword prominence.
SEO Optimization Tips
After analyzing your content, check that your target keyword appears in the top results with appropriate density. Look for opportunities to add semantic variations and related terms. If important keywords are missing, revise your content to include them naturally. Use the 2-word and 3-word analysis to identify long-tail keyword opportunities.
Compare your keyword density with top-ranking competitors for the same search terms. If competitors use certain phrases more frequently, consider incorporating those phrases into your content. However, always prioritize natural, reader-friendly writing over hitting specific density targets.
Beyond Keyword Density
Modern SEO goes beyond simple keyword density. Search engines use semantic analysis to understand content meaning. Use the keyword density checker as one tool in your SEO toolkit alongside readability analysis, content structure optimization, and comprehensive topic coverage.
Frequently Asked Questions
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