Keyword stuffing is an old SEO sin, but under-using or accidentally over-repeating a target phrase is still a real problem for content writers. This tool gives you an instant word- and phrase-frequency breakdown of any block of text so you can see exactly what you’re repeating, and how often.
What Is the Keyword Density Checker?
Paste in an article, product description, or landing page copy and get a ranked table of the most frequent single words, 2-word phrases, and 3-word phrases, each with a raw count and a density percentage relative to total word count. Common stopwords (the, a, and, of, etc.) are filtered out of the single-word view so the signal isn’t drowned by function words.
How to Use It
- Open the tool at /tools/keyword-density-checker.
- Paste your text into the box — it analyzes on every keystroke.
- Switch between the “Single words”, “2-word phrases”, and “3-word phrases” tabs.
- Check the density percentage for your target keyword against your intended range.
Key Features
- Three phrase lengths: single words, 2-word phrases, and 3-word phrases (n-grams), switchable with one click.
- Stopword filtering on single words, so “the” and “and” don’t clutter the top results.
- Live density percentages, calculated against total word count as you type.
- Runs entirely client-side — your draft content never leaves your browser.
When to Use This Tool
- Checking on-page SEO copy before publishing, to confirm a target keyword phrase appears at a reasonable density.
- Spotting accidental repetition in long-form content that a normal read-through might miss.
- Auditing existing pages by pasting in the visible body text to see what phrases actually dominate.
Try It Now
Open Keyword Density Checker directly, or press ⌘K and type the tool name from anywhere on the site.
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