Don's Tools · SEO & Marketing · Keyword Density Checker

Keyword density checker

Analyse word and phrase frequency in your content, right in your browser. Nothing is uploaded.

Phrase length
Works offline: your text is analysed in your browser with nothing uploaded. A natural keyword density is usually around 1 to 2 percent; phrases above about 4 percent are flagged in red as possible over-use.
Keyword Density Checker is a free SEO tool that analyses word and phrase frequency in your content entirely in your browser, with nothing uploaded. It counts single words and two or three-word phrases, shows each one's count and density percentage, can ignore common stop words, and flags phrases that may be over-used.

Frequently asked questions

Is my content uploaded anywhere?

No. The text is analysed entirely in your browser with nothing uploaded, so unpublished drafts stay private. It works offline once loaded.

What is a good keyword density?

Around 1 to 2 percent for your main keyword is natural. Much higher can read as keyword stuffing, so phrases above about 4 percent are flagged in red.

What do one, two and three words mean?

They control phrase length: single words, two-word phrases or three-word phrases, so you can find both individual terms and longer key phrases.

Why ignore common words?

Words like the, and and of appear constantly and are not meaningful keywords, so ignoring them surfaces the terms that actually describe your content. You can turn this off.

How is density calculated?

Density is a phrase's count divided by the total number of counted phrases of that length, shown as a percentage.