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Free Keyword Density & Content Frequency Analyzer

Audit word occurrences, phrase frequencies, and overall keyword ratios across your web pages for free to prevent over-optimization.
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Words: Chars: Sentences:
Read Time:
No Word Limit

Content Metrics Overview

Total Words
Unique Words
Lexical Diversity
(Unique / Total)
Stuffing Risk

SEO Keyword Density Gauge

Recommended: 1% - 2.5%
<1% Low 1-2.5% Ideal 2.5-4% High >4% Stuffing

Analysis Settings

Download results as CSV
Download results as JSON
Copy a summary report to clipboard

Top 10 High-Density Keywords

Count & Percentage

Prominent Keyword Cloud

Click word to inspect

Enter text to generate keyword cloud...

Highlighting Term:

Click any keyword in tables or type in Target Keyword Lookup to highlight here.

Understanding Keyword Density & SEO

The fundamentals behind healthy keyword usage and how to avoid over-optimization.

What is Optimal Keyword Density?

Most SEO specialists recommend keeping primary keyword density between 1% to 2.5%. This ensures search engines understand your context without triggering over-optimization penalties.

Avoiding Keyword Stuffing

Keyword stuffing occurs when terms are unnaturally crammed into text (>3.5%-4% density). Modern algorithms like Google RankBrain prioritize natural semantic flow and LSI variations.

Power of N-Gram Phrases

Long-tail phrases (2, 3, and 4-word clusters) account for over 70% of search traffic. Tracking multi-word phrase density helps optimize for voice search and specific user intent.

How to Use the Keyword Density Checker

Paste your content and instantly see which words and phrases dominate your text.

1. Paste Your Content

Paste a page, blog post, or any block of text into the analyzer — everything runs locally in your browser.

2. Tune & Review

Adjust stop words, case sensitivity, and minimum word length, then check the metrics, density gauge, and 1-4 word phrase tabs.

3. Copy or Export

Copy a summary report or export the full results as CSV or JSON for your records.

Frequently Asked Questions

Keyword density is the percentage of times a word or phrase appears relative to the total word count of a piece of content. It helps you see which terms dominate your text.
There is no strict rule, but most content naturally sits under 2-3% for a given phrase. Higher densities can look like keyword stuffing to search engines and readers alike.
Single words alone can be misleading - analyzing 2, 3, and 4-word phrases reveals repeated keyword patterns and helps you spot unnatural repetition that single-word counts miss.
Stop words are common filler words like "the", "and", or "of". Excluding them focuses the results on meaningful keywords and phrases rather than function words.
No. All analysis happens directly in your browser - your text is never uploaded or sent to a server.
Yes. The tool is completely free and does not require sign-up.

Still stuck? Contact us.

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