Keyword Density Checker – TF-IDF Analyzer & LSI Tool

What is a Keyword Density Checker?

A keyword density checker is an essential SEO tool that analyzes the frequency and distribution of keywords in your content to help optimize it for search engines. Keyword density measures how often a specific keyword appears in your text relative to the total word count, expressed as a percentage. Our free keyword density checker provides detailed analysis, shows keyword positions, calculates optimal density ranges, and helps you identify over-optimization or under-optimization issues that could impact your search engine rankings.

Benefits & Features

Real-time keyword density analysis with percentage calculationsTarget keyword tracking to monitor specific keywords you want to optimizeKeyword position tracking showing where keywords appear in your contentMinimum length and occurrence filters to focus on relevant keywordsVisual keyword cloud for easy identification of most frequent termsExport analysis reports in JSON or CSV format for further analysisWord and character count statistics for comprehensive content analysis100% client-side processing - your content never leaves your browserSupport for multiple languages including English and German

How to Use the Keyword Density Checker

1. 1

   Enter your content

   Paste or type your text content into the input field. The tool supports HTML content and will automatically strip tags for analysis.

2. 2

   Set analysis parameters

   Configure minimum keyword length (default: 3 characters) and minimum occurrences (default: 2) to filter relevant keywords.

3. 3

   Analyze keyword density

   Click the analyze button or let the tool automatically analyze as you type. Review the keyword density percentages for each keyword.

4. 4

   Track target keywords

   Enter specific keywords you want to monitor in the target keywords field to see their exact density and positions.

5. 5

   Review keyword positions

   Check where your keywords appear in the content to ensure natural distribution throughout your text.

6. 6

   Optimize your content

   Use the density percentages to adjust keyword frequency. Aim for 1-2% density for primary keywords and avoid over-optimization above 3%.

7. 7

   Export results

   Download your analysis as JSON or CSV for further analysis or documentation purposes.