Free Keyword Density Checker
Keyword stuffing is penalised and keyword absence is invisible — the goal is natural coverage. This free keyword density checker breaks your draft into single words, bigrams, and trigrams, reports the density of each, and highlights variations of your focus keyword so you can see whether Google has enough signal without tipping into over-optimization.
Keyword Density & Variation Checker
Spot overused or underused terms in your copy and get synonym suggestions to vary your language naturally.
Add some content above to see density analysis.
What this tool checks
- Single-word, two-word, and three-word phrase frequency
- Focus keyword density with over-optimization warnings
- Synonym and variation detection for semantic coverage
- Stop-word filtering so the results stay meaningful
Frequently asked questions
What is a good keyword density?
Roughly 0.5%–2% for a focus keyword. Above 3% reads as stuffed to both readers and Google; below 0.5% the page may not clearly signal its topic.
Is keyword density still relevant in 2026?
As a diagnostic, yes. Modern ranking is semantic, so use density to detect over-optimization and missing variations rather than as a target to hit.
More free SEO tools
Want SEO data backed by real Google rankings?
RankThrottle connects to Google Search Console to surface true ranking opportunities, keyword gaps versus competitors, and AI-powered content recommendations.