Keyword Density Checker
Check keyword and phrase density in any text online for free — single words and 2-word/3-word phrases, ranked by frequency, instantly inside your browser.
What is keyword density?
Keyword density is how often a word or phrase appears in a piece of text, expressed as a percentage of the total word count. Editors and SEO writers check it to spot over-repeated terms that can read as keyword stuffing, or to confirm a target keyword appears often enough for a page to stay clearly on-topic.
This tool counts single words as well as 2-word and 3-word phrases, so it surfaces repeated phrases — not just individual terms — that a single-word count would miss entirely.
GuideHow to use it
How density is calculated
Each term's count is divided by the total number of counted words (or phrase positions) in the text, then shown as a percentage. Most SEO guidance treats 1-3% as a reasonable range for a primary keyword — much higher than that often reads as unnatural repetition to both readers and search engines.
Why it helpsFeatures & benefits
Why this runs entirely in your browser
Draft content is often unpublished, so nothing is uploaded. Counting and analysis run in JavaScript locally in the tab, which means it keeps working offline once the page has loaded and nothing pasted into it persists after the tab is closed.
Common uses
Checking whether a target keyword is repeated naturally before publishing, spotting accidental keyword stuffing, or finding which phrases a competitor's page repeats most often when pasted in for comparison.
Frequently asked questions
A few things people usually want to know before trusting the numbers.
Most SEO guidance suggests 1-3% for a primary keyword. There's no strict rule search engines enforce, but noticeably higher often reads as repetitive.
Single-word counts miss repeated phrases like "keyword density checker" — phrase density often matters more for how a page reads and ranks for long-tail terms.
It filters out filler words like "the," "a," and "and" from single-word density, so the results focus on meaningful, topic-relevant terms.
Unnaturally repeating a term can read as keyword stuffing to both readers and search engines, so this tool helps catch that before publishing.
No. All counting happens locally in your browser. Nothing pasted here is sent to a server, stored, or shared.