Keyword Density Checker
Calculate keyword density in any text. Check keyword frequency and percentage for SEO content optimisation.
🔒Everything runs in your browser — nothing you enter is stored, sent anywhere, or seen by anyone. Privacy Policy
Related Tools
📝 Word Counter
Count words, characters, sentences, and paragraphs instantly. Get reading and speaking time estimates.
🔢 Character Counter
Count characters, words, and lines in your text. Check Twitter, SMS, and meta description character limits instantly.
🔗 URL Slug Generator
Convert any text into a clean URL slug for SEO-friendly web addresses. Free slug generator tool.
Keyword density measures how often a specific word or phrase appears in a piece of text relative to the total word count, expressed as a percentage. It is a long-standing metric in SEO content optimisation — too low and the page may not signal topic relevance clearly; too high and search engines may flag the content as keyword-stuffed. The ideal keyword density for SEO is generally considered to be 1–2%. For a 1,000-word article, that means using your primary keyword 10–20 times. This tool calculates that figure instantly: paste your content, enter your target keyword or phrase, and get the exact density percentage along with the raw occurrence count and total word count. Content writers use it to audit articles before publishing, checking that primary and secondary keywords appear at appropriate frequency. SEO managers use it during content reviews to identify pages that are over-optimised or under-optimised for target terms.
How to Use the Keyword Density Checker
The Keyword Density Checker is designed to give you an accurate answer in seconds. Follow these steps:
- 1Paste your article or page content into the Body Text field
- 2Optionally enter a specific keyword or phrase to check its density
- 3Click Analyze to process the text
- 4If a keyword is provided, see its occurrence count and density percentage
- 5Without a keyword, see the top 10 most frequent words and their density
No account or sign-up required. All calculations run locally in your browser — nothing is stored or transmitted to any server.
How It Works
Keyword Density (%) = (keyword occurrences ÷ total words) × 100
Enter or paste your content into the text area, then type the keyword or phrase you want to check. Click Analyze to see the results. The checker counts how many times the keyword appears in the text using case-insensitive matching — "SEO" and "seo" are treated as the same word. For phrase keywords (multiple words), it counts occurrences of the complete phrase in sequence. Total word count is calculated by splitting the text on whitespace. Density is then computed as: Keyword Density (%) = (keyword occurrences ÷ total words) × 100
Frequently Asked Questions
What is the ideal keyword density for SEO?
Most SEO practitioners cite 1–2% as the target range for a primary keyword. For a 1,000-word article, that means 10–20 occurrences. Going above 3% risks triggering keyword stuffing penalties — Google's algorithms actively detect and discount artificially over-optimised content. Going below 0.5% may mean the page does not signal topic relevance as strongly. Natural writing at 1–2% is the goal, not mechanical insertion to hit a number.
Does Google penalise keyword stuffing?
Yes. Google's Panda algorithm update (and successive iterations) specifically targets over-optimised, thin, and keyword-stuffed content. Pages that repeat a keyword unnaturally often — especially when it disrupts reading flow — can be demoted in rankings or removed from search results entirely. The modern guidance from Google is to write for readers first: use keywords where they make sense, include semantic variations and related terms, and let density be a quality check rather than a target to mechanically hit.
How many times should I use a keyword in a 1,000-word article?
At 1–2% density, a 1,000-word article should contain the primary keyword approximately 10–20 times. In practice, 10–15 times is a comfortable range: include the keyword in the title, meta description, first paragraph, a few subheadings, and naturally throughout the body. Also use semantic variations and related phrases — Google understands synonyms and topic clusters, so "keyword density tool" and "keyword frequency calculator" both help a page about keyword density rank without needing to repeat the exact phrase excessively.
Does keyword density apply to phrases as well as single words?
Yes — this checker supports multi-word phrases. Enter "keyword density" and it counts occurrences of that exact two-word sequence in the text. Phrase density is typically lower than single-word density because longer phrases occur less frequently in natural writing. For a long-tail keyword like "free keyword density checker", even 0.5–1% density (5–10 times in 1,000 words) is sufficient to signal strong topical relevance.
Is keyword density still a ranking factor?
Keyword density remains a useful diagnostic signal, though it is no longer a primary ranking factor in the way it was in early search engine optimisation. Modern search engines use semantic analysis, entity recognition, and user engagement signals alongside basic keyword frequency. Density checking is most valuable as a guard against extremes — it helps avoid both keyword stuffing and under-optimisation. Focus on covering the topic comprehensively rather than hitting a specific density number.