DocomintKeyword Density Checker
See which words appear most often in your content, as a percentage of total word count.
Similar to Word Frequency Counter, but filtered for SEO/copywriting use: common stopwords (the, and, of...) are excluded so the ranked list shows the actual topic words your content repeats, along with what percentage of total words each one makes up — useful for checking a page isn't accidentally over- or under-emphasizing its target keyword.
Example: A 150-word product description that says "coffee" 6 times comes back with coffee at 4.0% density.
How it works
- Paste your article, product copy, or page content
- Common stopwords are filtered out automatically
- Keyword density percentages appear instantly, on your device
Frequently asked questions
What keyword density is considered too high?
There's no official cutoff, but most SEO guidance treats anything consistently above roughly 3-4% for a single keyword as a sign of unnatural repetition — write for readability first and treat this as a sanity check, not a target to hit.
Is my text uploaded anywhere?
No — Keyword Density Checker runs entirely in your browser using JavaScript/WebAssembly. Your text is never sent to a server.
What counts as a 'stopword' that gets filtered out?
Common function words that carry little topical meaning on their own — articles like 'the' and 'a', conjunctions like 'and', prepositions like 'of' and 'in' — using a standard English stopword list, the same category of words most SEO tools exclude.