Keyword Density Checker & SEO Score Analyzer

⚡ Quick answer: Keyword Density Analyzer: Analyze keyword density and get an SEO score out of 100. It runs 100% in your browser — nothing is uploaded, no account needed.

Why it's private

Keyword analysis is usually run on draft content that has not been published — briefs, competitor notes, and the strategy itself. Because the density math runs on the text you paste, locally, nothing about your content strategy is ever sent to an analysis service.

Who needs this

Content marketers checking they are not over-stuffing a target term, copywriters reviewing drafts against a brief, and site owners running a quick on-page audit after a redesign.

Density as a health check, not a target

Keyword density — the share of your words that are the target term — was once treated as a number to hit, and that era left a scar: pages stuffed to 4% that read like a telephone book. The useful modern reading is directional: zero occurrences means the page is not really about the term despite claiming to be; 8–10% of a 400-word page means the term has displaced actual content. The analyzer reports the count, the density, and where the term appears (title, headings, first paragraph, body), which is the information a real review needs — distribution, not a single percentage. Paste the draft, get the breakdown, and judge from the text itself whether the term is earning its places.

Variations and context

A phrase has a footprint larger than itself: "PDF merger", "merge PDFs" and "combining PDF files" are the same topic in three grammatical shapes, and a page that uses all three naturally will show a low raw density for any single form. The analyzer lets you list the variations you care about and reports them individually and combined, which keeps the number honest without turning the tool into a thesaurus. The output is computed on the text in your browser — a strategy document or a competitor draft pasted for analysis never leaves the tab, and nothing is logged or stored.

Who uses this

Content writers checking a draft against a brief, SEOs auditing existing pages after a rewrite, and editors who want the number before the argument about the number starts. The analysis is local string math — the same zero-network guarantee as the rest of the suite.

How to analyze keyword density (3 steps)

1. Paste your article and type the focus keyword you're targeting.
2. Check the score out of 100 — the checks matter more than the number: keyword in the title? In the first 100 words? In a heading? Article long enough?
3. Fix the flagged items and re-run until the score is green. Typical sweet spot: 0.5–2.5% density, front-loaded.

FAQ

• What density is "too much"? Above ~3% starts to read as stuffing to both humans and Google. If you're forced to repeat a phrase that often, restructure the content instead.
• Does the score count variations? It counts the exact focus keyword and phrase matches you type. Check your main variation separately if you use one heavily.
• Is my article uploaded for analysis? No — the analysis is computed locally in your browser. Drafts, client briefs, and unpublished content are safe.