Keyword Density Checker

Analyze the frequency of keywords in your text. Optimize your content for SEO by finding repeated words.

Top Keywords

Analysis pending...

How This Tool Works
100% Client-Side

Your data never leaves your device. All processing happens locally in your browser. No text is sent to any server, no data is stored, and no cookies track your usage.

Text is tokenized into words, common stop words (a, the, is, etc.) are filtered out, and remaining keywords are counted. Density is calculated as (keyword count / total words) × 100. Results are sorted by frequency and the top 15 keywords displayed.

  • Filters 70+ common English stop words for accurate keyword extraction
  • Ignores words shorter than 3 characters
  • Calculates percentage density relative to total word count
  • Analysis runs entirely in your browser
How to verify this yourself

Check your browser's Network tab to see nothing is sent:

  1. Open DevTools: Right-click anywhere on the page → "Inspect" (or press F12)
  2. Go to Network tab: Click "Network" at the top of the DevTools panel
  3. Use the tool: Type or paste text and watch the Network tab
  4. Verify: You'll see no requests to external servers — all processing is local

Works in Chrome, Firefox, Safari, and Edge.