About the Keyword Density Checker
Keyword density measures how often a specific word or phrase appears relative to the total word count of a piece of content. While modern search engines rely far more on semantic understanding than exact keyword counts, checking density is still useful for spotting unnatural repetition (keyword stuffing) or verifying your primary keyword appears a reasonable, natural number of times.
This tool is useful for content writers and SEO specialists reviewing a draft before publishing, bloggers double-checking they haven't over-optimized a post, and students learning the basics of on-page content analysis.
To use it, paste your article or page content into the input box. The tool automatically counts total words and calculates the frequency and density percentage of every single word, plus two-word and three-word phrases, ranked from most to least frequent (excluding common stop words like "the" and "and" for the single-word view). You can also enter a specific target keyword to see its exact count and density highlighted separately.
For example, pasting a 500-word article about "email marketing tips" might show that "email" appears 15 times (3% density) and the phrase "email marketing" appears 8 times (1.6% density) — figures that read as natural for a focused article on that topic, versus a phrase repeated 40+ times, which would look unnatural to both readers and search engines.
A common mistake is deliberately stuffing a keyword into content dozens of extra times chasing a specific density percentage — there is no magic optimal percentage, and over-optimization can make content read awkwardly for real visitors while providing no meaningful ranking benefit, and in extreme cases can even be flagged as spam. Another mistake is ignoring keyword variations and synonyms entirely; modern SEO rewards content that naturally covers related terms and concepts, not just exact repeated phrases.
Tip: use this tool as a sanity check rather than a target to hit — write naturally for your human readers first, include your target keyword and its natural variations where they genuinely fit, and use the density report only to catch accidental over-repetition or to confirm your primary topic is clearly represented in the text.