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Keyword Density Analyzer

Paste your content to see the most frequent keywords and phrases, with density percentages and stuffing warnings.

How to use it

  • • Density shows how often a phrase appears relative to the text length
  • • There's no magic number — but anything above ~4% usually reads as keyword stuffing
  • • Two- and three-word phrases reveal what your page is actually about better than single words
  • • Results update automatically as you type

What it analyzes

Paste any text and the tool calculates:

  • Single keyword frequency and density % across the full text
  • Two-word phrase frequency — reveals topic focus better than single words
  • Three-word phrase frequency — shows whether you’re covering specific subtopics
  • Stuffing warnings when a term appears at a density that risks over-optimization
  • Total word count

How to interpret density

There’s no universal target density — the right number depends on page length and topic. But patterns matter: a primary keyword appearing at 5%+ in a 1,000-word article is usually a signal of over-optimization, not thoroughness. Two- and three-word phrases are more useful than single keywords because they expose what the content is actually about, not just which words appear most.

How to use it

  1. Paste your full draft or a specific section into the text area
  2. Toggle stopword filtering to remove filler words (the, and, of…)
  3. Review the top phrases — check if they match your target keywords
  4. If your target keyword is missing from the top results, it’s under-used; if it dominates, reduce repetition

Where keyword density actually matters

Keyword density is more useful as a diagnostic than a target. Use it to catch content that’s drifted off-topic, AI-generated drafts that over-repeat phrases, or legacy pages written around exact-match keyword counts that now read unnaturally. Compare a top-ranking competitor’s phrase distribution against your own to find gaps in coverage.

Frequently asked questions

Is this keyword density checker free?

Yes, free and no signup. Paste text or analyze a section instantly.

What is the ideal keyword density?

There is no ideal number. Write naturally and use this to catch under-coverage or stuffing, not to hit a target percentage.

Is keyword density still a ranking factor?

Not in the old sense. Google focuses on relevance and intent. Use density only as a sanity check.

Related tools: readability checker and meta tags analyzer. Background reading: keyword cannibalization.