Free SEO Tool

Keyword Density Checker

Analyze any webpage to discover the most frequently used words and terms. Great for on-page SEO audits and content optimization.

What is a keyword density checker?

A keyword density checker analyzes a webpage and counts how often each word and phrase appears. It calculates the density percentage — the ratio of each keyword's frequency to the total word count — giving you a clear picture of what topics the page focuses on.

This is especially useful for on-page SEO audits. You can quickly spot over-optimized keywords (keyword stuffing), identify content gaps, or verify that your target keywords appear with the right frequency. The tool also breaks down results by single words, 2-word phrases, and 3-word phrases so you can analyze both individual terms and common expressions.

Want to learn more about how keyword density fits into your SEO strategy? Read our guide on keyword density.

Frequently asked questions