Keyword Density Checker
Free keyword density checker and analyzer. Paste any article to get 1-word, 2-word, and 3-word phrase frequencies, density percentages, and a CSV export — with automatic stop-word filtering.
| # | Keyword | Count | Density |
|---|
Enter content above to analyze keyword density.
What Is Keyword Density?
Keyword density is the percentage of times a word or phrase appears in a page compared to the total word count. The formula is:
density (%) = (keyword occurrences / total words) × 100
It is a diagnostic, not a ranking factor on its own. Modern search engines rank pages on semantic relevance, intent match, and entity coverage — but density is still the fastest way to spot two problems: keyword stuffing (density too high) and keyword drift (your "primary" keyword barely appears).
How to Use This Keyword Density Checker
- Paste your article, landing page, or product description into the text area above.
- Pick a phrase length — 1-word for individual keywords, 2-word and 3-word for phrases (often more useful for SEO).
- Review the ranked table: count, density percentage, and a visual bar for quick scanning.
- Click Copy CSV to paste the results into Google Sheets, Excel, or a reporting tool.
What Is a Good Keyword Density?
- Primary keyword: 0.5%–2.5% is the safe zone. Above 3% starts to look unnatural.
- Secondary keywords: 0.3%–1%.
- LSI / related phrases: no target — the more variety, the better.
There is no single magic number. A 500-word post and a 3,000-word guide cannot be compared on raw density. What matters is whether the primary term appears often enough to signal topic relevance without feeling repetitive to a human reader.
Signs Your Density Is Too High
- The primary keyword appears in almost every paragraph
- Sentences feel awkward because they've been bent to fit the keyword
- You're using the exact-match phrase when a pronoun would read more naturally
- Secondary keywords are missing entirely
If any of these apply, rewrite for the reader first and let density fall where it may. Google's Helpful Content system was designed specifically to demote pages that read like they were written for a keyword calculator.
Signs Your Density Is Too Low
- Your target keyword doesn't appear in the H1 or first 100 words
- It's missing from subheadings (H2/H3)
- Synonyms and related entities are absent (e.g., writing about "SEO" without mentioning "search engine", "Google", "ranking")
- The density table is dominated by unrelated filler words
Why Stop Words Are Filtered
Stop words like the, a, is, and, and for appear in almost every English sentence and carry no topical meaning. Counting them would crowd out the actually-relevant keywords. This tool removes 100+ common English stop words automatically so you can focus on signal, not noise.
1-word vs 2-word vs 3-word Phrases
Individual word counts are useful for broad topic check-ins ("is SEO the dominant theme?"). But real-world search queries are usually 2–5 words long, so the 2-word and 3-word views often reveal the phrases you're actually ranking for: "robots txt generator", "keyword density analyzer", "block AI crawlers". Use those views when optimizing for specific search intents.
Related SEO Tools
Pair density analysis with a word counter for total-length checks, the Google SERP preview for your title and meta description, and the slug generator for clean URLs.
Frequently Asked Questions
What is a good keyword density for SEO?
There is no magic number, but most SEO professionals keep primary keyword density between 0.5% and 2.5%. Above 3% starts looking like keyword stuffing. Writing naturally and covering the topic thoroughly matters far more than hitting a specific percentage.
Why are stop words filtered out?
Stop words like "the", "a", "is", and "are" appear in almost every sentence and carry little SEO value. Filtering them out lets you focus on the meaningful terms that search engines associate with your topic.
Does keyword density still matter in 2026?
Google uses semantic embeddings and entity analysis rather than counting exact matches, so density is not a direct ranking factor. It remains useful as a diagnostic — to spot stuffing, confirm your primary term appears often enough, and check that related entities are present.
What is keyword stuffing?
Keyword stuffing is the practice of repeating a target keyword unnaturally often in an attempt to rank higher. It is explicitly against Google's spam policies and is one of the easiest violations to detect automatically. Anything over ~3% density, especially in exact-match form, is a warning sign.
What's the difference between 1-word, 2-word, and 3-word analysis?
1-word mode counts individual words (useful for topic check-ins). 2-word and 3-word modes count phrases (n-grams), which usually match real search queries better. Most SEOs focus on 2- and 3-word phrases when optimizing for specific search intents.
Is this keyword density checker free?
Yes. No signup, no limits, no tracking. Your content is analyzed entirely in your browser — nothing is sent to a server.
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