ToolNestFree Keyword Density Checker
Is your content optimized — or stuffed? Paste your article into our free keyword density checker to see exact keyword frequency and density percentages, the top 1–3 word phrases in your text, and readability stats that matter for SEO.
—Words
—Target density
—Reading level
Top Keywords & Phrases
Run an analysis to see the top terms.
✓ Free forever · ✓ No signup · ✓ Runs in your browser — your data never leaves your device.
How to Use the Keyword Density Checker
- Paste your article text (500+ words gives the most useful data).
- Optionally enter the keyword you're targeting.
- Click Analyze — density, frequency, and top phrases appear instantly.
- Aim for natural coverage (~1–2%); rewrite if one term dominates.
Why Use Our Keyword Density Checker?
- Exact density % — frequency and density for any target keyword or phrase.
- Top phrases — see which 1, 2, and 3-word phrases actually dominate your text.
- Stop-word filtering — 'the', 'and', 'is' excluded so real keywords surface.
- Readability score — Flesch reading-ease estimate for your content.
Frequently Asked Questions
What is good keyword density?
There's no magic number — 1–2% for a primary keyword reads naturally. Above ~3% starts looking stuffed to readers and search engines.
Does keyword density still matter for SEO?
As a precise metric, less than it used to — Google understands topics, not counts. But extreme stuffing still hurts, and this tool catches that.
How are phrases counted?
The analyzer counts 1, 2, and 3-word sequences after lowercasing and stripping punctuation and stop words.
Can I check a live web page?
Copy the page's text and paste it here — the analysis is identical.
Is it free?
Yes — free forever, no signup, unlimited checks.