Free SEO writing tool
Keyword Density Checker for SEO
Last reviewed June 1, 2026
Paste or import text to analyze 1-word, 2-word, 3-word, and 4-word phrase frequency, target keyword usage, Google keyword-stuffing risk, first-100-word placement, semantic coverage, and CSV exports before publishing.
Quick answer
Use this keyword density checker to find repeated words and phrases before publishing SEO copy. It is not a target-percentage tool: Google warns against unnatural repetition, so the best use is spotting overuse, checking whether the main phrase appears naturally near the start, and improving topical coverage without stuffing exact-match keywords.
Check keyword density without chasing a magic percentage
Check keyword density
Paste the draft, enter a target keyword, and review occurrences, density, and first-100-word placement.
Find repeated phrases
Switch between 1-word, 2-word, 3-word, and 4-word phrases to spot repetitive copy and missing subtopics.
Reduce stuffing risk
Use density as an editorial warning, then rewrite exact-match repetition into helpful coverage.
Publishing workflow
Use keyword density after the text is readable
A high-density page can still fail if it is hard to read or full of typos. This workflow keeps the SEO pass useful without turning the copy into keyword stuffing.
Draft clarity
Run grammar and spelling first so keyword repetition is not hiding basic writing problems.
Check grammarSearch coverage
Use 1-word through 4-word phrases to spot missing subtopics and accidental stuffing.
Check densityReader fit
Confirm sentence length and grade level before publishing a page that needs organic clicks.
Check readabilityPaste content to check keyword density
The checker runs in your browser and does not upload pasted or imported text.
What Is Keyword Density?
Keyword density is the percentage of times a keyword appears on a page compared to the total number of words. It is calculated by dividing the number of keyword occurrences by the total word count and multiplying by 100. For example, if a keyword appears 5 times in a 500-word article, the keyword density is 1%.
Why N-Grams Matter for SEO
N-grams are repeated multi-word phrases. Analyzing 2-word, 3-word, and 4-word phrases helps editors catch repeated exact-match wording, repeated boilerplate, and missing subtopic language before the page goes live. Use the output as an editorial audit, not as a command to insert more keywords.
Keyword Density Best Practices
Focus on writing naturally rather than hitting exact density numbers. Use your primary keyword in the title, first paragraph, headings, and conclusion when it helps the reader. Include related terms, entities, examples, and subtopics that people expect to see. Modern SEO values helpful topical coverage over exact keyword repetition.
Keyword Stuffing vs. Helpful Coverage
Search engines do not reward pages for repeating one phrase as many times as possible. Use this checker to spot obvious repetition, then improve the page with clearer answers, related subtopics, original examples, and terms that real users expect to see. If a keyword appears too often, replace some exact-match uses with natural synonyms or remove the repeated sentence.
For official guidance, review Google Search Central's documentation on keyword stuffing and creating helpful content.
Source and Review Checkpoint
Reviewed June 1, 2026. This tool is aligned with Google Search Central guidance that warns against repeating words or phrases unnaturally and recommends helpful, people-first content. Treat density as an editorial diagnostic: it can reveal repetition, but it cannot prove ranking quality by itself.
Keyword Density FAQ
What is a keyword density checker?
A keyword density checker counts how often words and phrases appear in a draft and shows their share of the total word count.
How do I check keyword density on this page?
Paste your draft, enter the target keyword if you have one, then review occurrences, density percentage, first-100-word placement, 1-word through 4-word phrases, and overuse warnings.
Can I import a text file?
Yes. You can import a .txt or .md file up to 1 MB. The file is read locally in your browser and is not uploaded to EyeSift.
Can I check keyword density in a PDF?
Yes. Use EyeSift PDF to Text first, then paste the extracted visible text into this checker so the calculation ignores PDF metadata and layout code.
What keyword density should I use for Google SEO?
There is no universal ideal keyword density. Use the number to catch unnatural repetition, then focus on helpful answers, related subtopics, and natural wording.
Can high keyword density hurt SEO?
Yes. If repetition sounds unnatural, it can look like keyword stuffing. Rewrite repeated phrases into clearer explanations, examples, or related terms.
Does EyeSift store my pasted text?
No. The analysis runs in your browser and the pasted text is not uploaded to EyeSift servers.