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Keyword Counter

Analyze keyword frequency, density, and n-grams in any text. Filter stopwords, toggle case sensitivity, and get a clean table of your top keywords. Perfect for SEO, content analysis, and writing improvement. Runs entirely in your browser — your text never leaves your device.

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Total Words
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Unique Words
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Top Keyword
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Top Density
Keyword Count Density
No keywords to display. Paste some text and click Analyze Keywords.

How to Use the Keyword Counter

  1. Paste or type your text into the text area on the left.
  2. Adjust the options: remove stopwords, toggle case sensitivity, choose phrase size (unigram, bigram, trigram), and pick a sort order.
  3. Click "Analyze Keywords" to see the top keywords, their counts, and their density percentages.
  4. Use the Export CSV button to download the results for further analysis in Excel or Google Sheets.

What Is Keyword Density?

Keyword density is the percentage of times a keyword appears in a text compared to the total number of words. It's calculated with the formula:

Density (%) = (Keyword Count / Total Words) × 100

For SEO, a density of 1–2% is generally considered natural and safe. Higher densities can look like keyword stuffing and may hurt rankings. This tool helps you spot which keywords are over- or under-represented in your content.

Stopwords and N-grams Explained

Stopwords

Stopwords are common words like "the", "and", "is", "at", "which" that appear very frequently but carry little semantic meaning. Filtering them out gives you a clearer picture of the actual keywords that define your content. Our stopword list covers the most common English words.

N-grams

N-grams are contiguous sequences of n words. A 2-gram (bigram) is a two-word phrase like "keyword density". A 3-gram (trigram) is a three-word phrase like "keyword density checker". Analyzing n-grams helps you find common phrases in your text, which is useful for SEO keyword research and content optimization.

Why Use a Keyword Counter?

  • SEO optimization: Check keyword density and avoid over-optimization or under-optimization.
  • Content analysis: Understand the main topics and themes in any text.
  • Writing improvement: Spot repetitive words and diversify your vocabulary.
  • Academic research: Analyze word frequency in papers, transcripts, or survey responses.
  • Competitor analysis: Paste competitor content to see which keywords they emphasize.

Tips for Using the Keyword Counter

  • Start with stopwords removed. This filters out noise and shows you the real keywords.
  • Try bigrams and trigrams. Sometimes phrases are more meaningful than single words — like "machine learning" or "content marketing".
  • Watch for high-density outliers. If a keyword has a density above 3–4%, consider varying your language.
  • Use case-sensitive mode when proper nouns matter (e.g., "Apple" vs "apple").
  • Export to CSV for spreadsheet analysis, especially useful for longer documents.

Related Tools

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Frequently Asked Questions

A keyword counter is a tool that analyzes a block of text and counts how often each word or phrase appears. It helps you identify the most frequently used terms, which is useful for SEO, content analysis, and writing improvement.
Keyword density is the percentage of times a keyword appears in a text compared to the total word count. For SEO, a density of 1-2% is generally considered safe and natural.
Stopwords are common words like 'the', 'and', 'is' that appear frequently but carry little meaning. Filtering them out gives you a clearer picture of the actual keywords in your text.
N-grams are contiguous sequences of n words. A 2-gram (bigram) is a two-word phrase like 'keyword density'. A 3-gram (trigram) is a three-word phrase like 'keyword density checker'. They help identify common phrases in your text.
Yes. Everything runs in your browser. Your text never leaves your device — no server processing, no logging, no storage. Close the tab and it's gone.
Yes. Once the page loads, all calculations happen in your browser. You can use it without an internet connection.
Yes, completely free. No signup, no watermark, no hidden charges.