SEO

Keyword density checker

Analyse keyword frequency in any text to guide on-page SEO optimisation.

Ignore stop words Include 2-word phrases

100% private. All processing happens locally in your browser — no files or data are ever sent to a server.

How to use Keyword density checker

01 Paste or type your text into the input area
02 Results update in real time — no button press needed
03 Use the Copy button to copy the output to your clipboard

Frequently asked questions

Common questions about Keyword density checker.

Is Keyword density checker free to use?

Yes, Keyword density checker is completely free. No account, subscription, or payment is ever required — just open the page and start using it.

Does Keyword density checker upload my data to a server?

No. Keyword density checker runs entirely in your web browser using client-side JavaScript. Your files, text, and data never leave your device, making it 100% private.

Can I use Keyword density checker on my phone or tablet?

Yes. Keyword density checker is fully responsive and works on all modern smartphones, tablets, and desktop browsers without installing any app.

Is there a character or word limit?

There is no hard limit built into Keyword density checker. Very large inputs (millions of characters) may slow down some browsers, but typical documents process instantly.

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About Keyword density checker

Keyword density measures how often a specific word or phrase appears in a piece of content as a percentage of the total word count. While modern SEO has moved well beyond rigid keyword density targets, understanding frequency still helps: over-optimised content (keyword stuffing) can trigger ranking penalties, while under-optimised content may miss clear ranking opportunities. The Keyword Density Checker analyses your full text and ranks all words and phrases by frequency, giving you a clear picture of what topics your content emphasises.