This SEO plugin checks the content of posts/pages for the keyword density (single/phrases) while writing and is automatically setting the META-tags.
This SEO-Tool provides a keyword analyzer calculating the keyword density of the page/post content and generating statistics for keywords and phrases.
Helps you write great content with search engines in mind. Keyword distribution and keyword density will help you.
The On-Page and Post SEO WordPress Plugin gives you the DIY SEO Tools that will enable you to write better content and analyse it for SEO factors.
Monitors the keyword density of keywords you select in the whole blog and gives a live update of the keyword density of the post as you type.
The Keyword Counter & Density Calculator plugin calculates how many times and how commonly each keyword is used in a post or a page.