Keyword Density Checker
Check how many times and at what density each keyword or key phrase appears in your text, from 1 to 4 words.
Words: 0 · Characters: 0
| Keyword | Count | Density | Weight |
|---|---|---|---|
| Type or paste a text to analyze its keyword density. | |||
Density: gray <1% · green 1–3% · red >3% (possible over-optimization).
What is keyword density?
Keyword density is the percentage a word or phrase represents out of the total word count of a text. It measures how often a term is repeated within the content.
Checking keyword density tells you whether a text is well optimized or overuses the same term. A checker automates that calculation: you paste the content and get the frequency of each word instantly.
This tool runs in your browser, without sending the text to any server. It is the fastest way to review keyword density before publishing any text document.
Why does keyword density matter for SEO?
Controlling keyword density is key to ranking without penalties. These are the three main reasons.
Topical relevance
A balanced density helps Google understand what your page is about. Keyword density reflects the weight of each term in the text.
Avoid keyword stuffing
Repeating a keyword too often counts as keyword stuffing and can hurt your rankings. The checker spots those cases instantly.
Curb over-optimization
A density that is too high makes the text feel unnatural. Controlling keyword density keeps reading smooth and SEO healthy.
For more context on content length, see our blog post length guide.
How to check keyword density step by step
Paste the text
Copy the content of your article, listing or page and paste it into the text box.
Choose the length
Select whether to analyze 1, 2, 3 or 4 words and whether to ignore stop words.
Review the density
The table shows each keyword with its frequency and density, marked by color.
What is the ideal keyword density?
The calculation formula
Keyword density is obtained with a simple formula, which this tool applies over the total word count of the text.
Recommended range: 1–2%
Most SEO professionals recommend a keyword density between 1% and 2% for the main term. Below 1% the term may go unnoticed; above 3% there is a risk of over-optimization.
Unigrams, bigrams and trigrams
The checker studies phrases from 1 to 4 words. Unigrams show single terms; bigrams and trigrams reveal full key phrases, which usually reflect real search intent better.
How to fix a density that is too high
If the checker flags a word in red, its density exceeds 3% and should be reduced. The fastest fix is to replace some of the repetitions with synonyms or related terms.
Rewriting whole sentences also helps: a keyword is often repeated because the writing is monotonous. The repeated words finder and the text summarizer help you spot and lighten those passages.