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Tools / Keyword density analyzer

Keyword density analyzer

Check keyword frequency and n-gram density across your content. Highlights top recurring single words, bigrams, and trigrams with optional stop word exclusion to optimize copy for search engines and avoid keyword stuffing.

Runs entirely in your browser

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About this tool

Analyse how often words and phrases appear in a piece of content. This tool reports the frequency and percentage density of single words, two-word phrases (bigrams) and three-word phrases (trigrams), with the option to exclude common stop words so the meaningful terms stand out.

It is a practical check for content and SEO work: it shows whether your intended topic actually features prominently, and it flags over-repetition that can read as keyword stuffing. Seeing the top n-grams also reveals the phrases a page emphasises, which may not be the ones you expected.

The analysis runs in your browser, so your draft is not uploaded. Use it to confirm a page is clearly about its target topic, to catch unintentional repetition, and to compare the emphasis of different drafts — while remembering that natural, useful writing matters more than any density figure.

Frequently asked questions

What does keyword density measure?
How frequently words and phrases appear, as a count and a percentage of the total. It covers single words and two- and three-word phrases (n-grams).
What are stop words and why exclude them?
Stop words are common words like “the” and “and” that carry little topical meaning. Excluding them makes the significant terms and phrases stand out in the analysis.
Is there an ideal keyword density?
There is no magic number, and modern search engines value natural writing. Use the tool to check that your topic features clearly and to avoid obvious over-repetition, not to hit a specific percentage.
Is my content uploaded?
No. The analysis runs in your browser, so your draft is not sent anywhere.
What are bigrams and trigrams?
They are two-word and three-word phrases. Analysing them shows the multi-word terms a page emphasises, not just individual words.

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