Keyword density is a 2005 SEO relic if you treat it as a target percentage. It is still a useful smoke alarm. If your phrase appears once in a 900-word description, the copy may have wandered. If it appears every other sentence, you are stuffing.
Paste the title and description, enter one or more phrases, and read counts plus a simple density. Then rewrite until a stranger would still enjoy the paragraph.
How to use this tool
- Paste title and description.
- Enter a primary phrase and optional secondary phrases.
- Review counts and highlighted density.
- Rewrite stuffed sentences into useful explanations.
What “good” density looks like on YouTube
There is no official YouTube density. A practical pattern: the phrase in the title, once in the first description sentence, and a couple of natural variations later (synonyms, product names, series names). Captions and speech will carry the rest if you actually said the words on camera.
Professional notes
- Count lemmas mentally: “edit,” “editing,” and “editor” are a family, not three unrelated tokens.
- If density is zero, you may have written a clever essay about the wrong topic.