Stop words are common words like 'the', 'and', 'is', 'in' that carry little SEO meaning. Keyword density tools filter them out so results focus on meaningful keywords.

What is a readability score?

The readability score (Flesch-Kincaid) measures how easy your content is to read. A score of 60–70 is considered good for most web content. Simpler language scores higher.

Keyword Density Checker — Real-Time & Free

Q: What is keyword density?

Keyword density is the percentage of times a specific keyword appears in your content compared to the total word count. For example, if your keyword appears 10 times in a 1,000-word article, the keyword density is 1%.

Q: What is the ideal keyword density for SEO?

Most SEO experts recommend a keyword density between 1% and 2% for primary keywords. Below 0.5% may indicate under-optimisation; above 3% risks keyword stuffing penalties. Focus on natural writing rather than hitting exact numbers.

Q: Does keyword density affect Google rankings?

Google does not use keyword density as a direct ranking factor. However, natural keyword usage helps Google understand your content's topic. Keyword stuffing (excessive repetition) is penalised.

Q: Is this keyword density checker free?

Yes — completely free with no usage limits and no sign-up required. All analysis runs in your browser.

Paste your content and instantly see keyword density, readability score, n-gram breakdown, and visual word cloud. Highlights your target keyword in the text as you type.

Real-time analysis Target keyword tracker 1–4 gram tables Readability score CSV export

🎯 Target keyword(s)

🌐 Language (stop words)

⚠️ Possible keyword stuffing detected

Your content (type or paste — live analysis)

Keyword	Count	Density	Usage	Status
Paste your content above to see results

Phrase	Count	Density	Usage	Status
Paste content to see 2-word phrases

Phrase	Count	Density	Usage	Status
Paste content to see 3-word phrases

Phrase	Count	Density	Usage	Status
Paste content to see 4-word phrases

Type or paste your content above.
Results appear instantly — no button click needed.

🎯 Target Keyword Analysis

Enter a target keyword above and paste your content

📊 Content Stats

Words

Unique

Sentences

Characters

Avg word len

Avg sent len

📖 Readability Score

—

Paste content to calculate

Flesch-Kincaid Reading Ease. Higher = easier to read.

HOW IT WORKS

How to Check Keyword Density

Three steps — results appear as you type, no button needed.

Set your target keyword

Type your focus keyword(s) in the Target Keyword field. The tool tracks them specifically and shows a dedicated density gauge for each.

Paste your content

Paste your article, blog post, or page content into the editor. Every metric updates in real time — no clicking required.

Optimise using the insights

Check your density gauge, click keywords in the table to highlight them in your text, review readability, and export results to CSV.

FEATURES

More than any other free keyword density tool

Real-time, visual, and actionable — unlike the button-click tools your competitors use.

Real-time analysis

Results update instantly as you type — no submit button. See density change in real time as you add or remove keywords.

Visual density gauge

A color-coded meter shows whether you're under-optimised, optimal, or stuffing. Includes recommended usage count for your word count.

1 to 4-gram tables

Sortable tables for single words, 2-word phrases, 3-word phrases, and 4-word phrases. Stop words filtered in your chosen language.

Interactive word cloud

Click any word in the cloud to highlight every occurrence in your text. Word size scales with frequency. Color-coded by density status.

Readability score

Flesch-Kincaid Reading Ease score alongside keyword density. Understand whether your content is appropriately written for your audience.

CSV export

Download any n-gram analysis as a spreadsheet. Perfect for SEO reports, content audits, and sharing with clients or teammates.

FAQ

Frequently Asked Questions

What is keyword density?

Keyword density is the percentage of times a keyword appears in your content compared to total word count. If your keyword appears 10 times in a 1,000-word article, the density is 1%.

What is the ideal keyword density for SEO?

Most SEO experts recommend 1–2% for primary keywords. Under 0.5% may signal under-optimisation. Over 3% risks keyword stuffing penalties. The most important thing is that your content reads naturally.

Does keyword density directly affect Google rankings?

Google has confirmed keyword density is not a direct ranking factor. However, natural keyword usage helps Google understand your page's topic. Keyword stuffing — repeating keywords unnaturally — is actively penalised.

What are stop words and why are they excluded?

Stop words are common words like "the", "and", "is", "in", "a" that carry no SEO meaning. Removing them from the analysis keeps the results focused on meaningful keywords. Our tool supports stop words in English, Arabic, French, Spanish, and German.

What is the readability score?

The readability score uses the Flesch-Kincaid Reading Ease formula. Scores of 60–70 are ideal for most web content (plain English). Scores below 30 are very difficult to read. Shorter sentences and simpler words increase the score.

How do I highlight a keyword in my text?

Click any row in the 1-word, 2-word, 3-word, or 4-word tables. Every occurrence of that keyword will be highlighted in yellow in your text editor. Click the same row again to deselect.

Is this keyword density checker free?

Yes — completely free with no usage limits, no word count limits, and no sign-up required. All analysis runs 100% in your browser — your content is never uploaded to any server.

What is a 2-gram or 3-gram?

An n-gram is a sequence of n words. A 2-gram (bigram) is a 2-word phrase like "keyword density". A 3-gram is a 3-word phrase like "keyword density checker". Analysing n-grams helps identify long-tail keyword usage and unnatural phrase repetition.