SEO content editing tool
Keyword Density Checker
Find repeated words and keyword density percentages before publishing SEO articles, landing pages, product copy, or blog posts.
- Free
- No Signup
- Private Browser-Based Tool
- Works on Mobile
Private browser-based tool
Keyword Density Checker
Find repeated words and keyword density percentages before publishing SEO articles, landing pages, product copy, or blog posts.
What is a keyword density checker?
A keyword density checker shows how often important words appear in a text. It helps writers spot repeated terms, overused phrases, and missing topical language while keeping content natural and useful for readers.
Who is this tool best for?
Best for SEO writers, bloggers, content editors, affiliate writers, e-commerce copywriters, and marketers reviewing on-page content.
- Check repeated keywords
- Avoid keyword stuffing
- Review topical word balance
- Compare density before publishing
- Find overused filler words
- Support content briefs and edits
Simple workflow
How to Use Keyword Density Checker
Paste or type text
Add your draft, article, essay, caption, email, script, or document to the text box.
Review instant results
Check the live stats, warnings, table, or formatted output without refreshing the page.
Edit for clarity
Use the signals to shorten, format, clean, or improve the text for real readers.
Copy or download
Copy the final text or download a TXT file when you are ready.
Quick reference
Keyword Density Editing Signals
Use these ranges as practical editing guides. Exact requirements can vary by school, publisher, platform, or client.
| Use | Guide |
|---|---|
| Very low | Important term may be missing |
| Natural use | Term appears where it helps users |
| High repetition | Check for awkward wording |
| Stuffed text | Rewrite for readers first |
Works for English Writing Worldwide
SentencesCounter is built for English writing used in the United States, United Kingdom, Canada, Australia, New Zealand, Ireland, South Africa, and international English-language teams that publish in English.
Privacy-First Browser Processing
The tool runs in your browser. It does not require signup and does not upload your pasted draft by the counter. This is useful for essays, emails, business documents, scripts, and unpublished website copy.
Helpful answers
Frequently Asked Questions
What is keyword density?
Keyword density is the percentage of total words made up by a repeated word or phrase.
What keyword density is best for SEO?
There is no perfect number. Use density to avoid overuse and to make sure key topics appear naturally.
Can keyword stuffing hurt SEO?
Yes. Content should be written for users, not filled with repeated keywords to manipulate search.
Does this replace SEO research?
No. It helps edit text, but search intent, content quality, internal links, and authority still matter.
Does the tool check phrases?
The live table focuses on top repeated words. You can still review phrases manually in your draft.
Is my SEO draft private?
Yes. The analysis runs in your browser.
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