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Keyword Density Checker

Paste your content above to see keyword density analysis.

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About Keyword Density Checker

The Keyword Density Checker analyzes your text or web page content and calculates how frequently each keyword or phrase appears relative to the total word count. It helps writers and SEO professionals maintain a natural keyword balance, avoiding both under-optimization and keyword stuffing penalties. The tool provides a clear percentage breakdown so you can fine-tune content before publishing.

Key Features

  • Calculates density for single words, two-word, and three-word phrases automatically
  • Displays keyword frequency count alongside percentage density
  • Highlights over-optimized keywords that may trigger spam filters
  • Supports direct text input as well as URL-based content extraction
  • Filters out common stop words to focus on meaningful terms
  • Exports a downloadable keyword density report in CSV format

How to Use Keyword Density Checker

  1. 1

    Paste your content or enter a URL

    Copy and paste the article text into the input field, or provide a URL to automatically extract the visible page content for analysis.

  2. 2

    Set your target keyword

    Enter the primary keyword you are optimizing for so the tool can highlight its density relative to the rest of the content.

  3. 3

    Review the density breakdown

    Examine the table of one-word, two-word, and three-word phrases sorted by frequency to understand how your content reads to search engines.

  4. 4

    Identify over-used or under-used terms

    Look for keywords exceeding 2-3% density, which may appear spammy, and terms that should appear more often for topical relevance.

  5. 5

    Revise and re-check

    Edit your content based on the findings, then re-run the analysis to confirm your keyword distribution looks natural and balanced.

Common Use Cases

Pre-publish content optimization

Run every blog post through the checker before hitting publish to ensure your focus keyword appears enough times without crossing into over-optimization territory.

Competitor content analysis

Paste a top-ranking competitor's page text to reverse-engineer their keyword strategy and discover terms you may be missing in your own content.

Updating legacy content

Analyze older articles that have lost rankings to determine whether keyword density has drifted and needs rebalancing after content edits.

Freelance writing quality assurance

Editors can verify that freelance writers have incorporated target keywords at an appropriate frequency before approving content for publication.

Why Use Our Keyword Density Checker

Get a complete density breakdown for single words, bigrams, and trigrams in one click without pasting your content into a tool that stores or resells it. This browser-based checker runs instantly, filters stop words automatically, and flags over-optimization risks so you can fine-tune keyword balance before publishing.

Keep Your Keywords Confidential

Your article text and target keywords never leave your browser during analysis. Unlike cloud-based SEO suites that may index or resell submitted content, this tool ensures your unpublished drafts and keyword research remain exclusively yours.

Frequently Asked Questions

What is the ideal keyword density for SEO?
Most SEO experts recommend keeping keyword density between 1% and 2% for your primary keyword. Going significantly higher risks triggering keyword-stuffing penalties, while falling below 0.5% may signal weak topical relevance to search engines.
Does keyword density still matter in modern SEO?
While search engines now use semantic understanding and entity recognition, keyword density remains a useful diagnostic. It helps ensure you mention your target topic enough for relevance without unnaturally repeating phrases, which still hurts rankings.
Should I check density for long-tail keywords too?
Yes. Long-tail phrases often have less competition and higher conversion intent. Checking their density ensures they appear naturally in your content and helps you capture traffic from specific, lower-volume queries.

Last updated: April 6, 2026