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Keyword Density Checker

Analyze keyword density with X-Ray heatmap, content scorecard, and visual highlighting.
0 Words
0 Characters
0 Sentences
0 Paragraphs
0 Min Read
Readability

Focus Keyword Report

0%
Density
0 Occurrences
Prominence
Placement Checks

HTML Structure Analysis

SEO Suggestions

Keyword Cloud

TF-IDF Importance

Higher TF-IDF = more unique/important to this document vs. general language

Content Scorecard

Overall
Placement
Variety
Distribution
Stuffing Risk

Keyword Distribution Map

Low
High
Start Middle End
#KeywordCountDensityTF-IDFVisual
Enter text to analyze keyword density

Keyword X-Ray

100% browser-based — your text never leaves your device

How to Use the Keyword Density Checker

Paste or type your content in the text area above. The tool instantly analyzes your text and shows keyword density for 1-word, 2-word, 3-word, and 4-word phrases. Use the tabs to switch between n-gram views, toggle stop word filtering, and sort results by frequency, density, or alphabetical order.

Understanding the Keyword X-Ray

The Keyword X-Ray is our unique feature that highlights every keyword occurrence directly in your text. Select a specific keyword from the dropdown to isolate it, or view all top keywords color-coded simultaneously. This lets you visually assess keyword placement and identify clusters or gaps.

Reading the Distribution Heatmap

The heatmap divides your content into 30 segments and color-codes each one based on keyword concentration. Blue means low density, intense blue means moderate, and red indicates high concentration. Ideally, you want a relatively even spread without red-hot clusters that could signal keyword stuffing.

Frequently Asked Questions

Keyword density is the percentage of times a keyword or phrase appears compared to the total number of words in a text. For example, if a keyword appears 5 times in a 200-word article, the density is 2.5%.
Most SEO experts recommend keeping keyword density between 1-2%. Going above 3% may be flagged as keyword stuffing by search engines. Our tool highlights keywords that exceed safe thresholds.
The distribution heatmap shows WHERE your top keywords appear across your content — from start to end. An even spread is better for SEO than clustering keywords in one section.
The scorecard evaluates four dimensions: Placement (are keywords in strategic positions?), Variety (unique word diversity), Distribution (how evenly spread), and Stuffing Risk (over-optimization warning).
No. All analysis runs 100% in your browser using JavaScript. Your text never leaves your device.
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