How to use the keyword density checker
- Paste your text into the box.
- Type the keyword or phrase you want to measure.
- Press "Analyze text".
- Read the keyword count, its density, and the list of the ten most frequent words.
How density is calculated
Keyword density is the number of times a keyword appears divided by the total number of words, expressed as a percentage. A phrase that appears 5 times in a 500-word article has a density of 1%. The count is case-insensitive, so "Widget", "widget" and "WIDGET" all match the same keyword, and the check uses whole-word boundaries so a search for "cat" does not count "category" as a match.
The top-words list is computed the same way, counting every word in the text regardless of case. It is a quick way to spot the terms your writing leans on, which is handy for making sure the language you want to rank for is actually present.
What is a healthy keyword density
There is no single correct number, and search engines have moved well beyond counting keywords. As a rough guide, most editors treat 1% to 3% as a reasonable range for a primary keyword — enough to be relevant without reading as stuffed. If your keyword density climbs much higher, the text can feel unnatural to readers and to search engines. Use this tool to check the number, then trust your judgment about whether the writing still reads well.
Reading the results
The top of the result shows the total word count, then the number of times your keyword appears and its density as a percentage. Below that, the ten most frequent words are listed with their own counts and densities. Stop words like "the" and "and" often sit at the top of that list, which is normal — the list is most useful for spotting the meaningful nouns and verbs that recur in your writing and confirming your intended topic words actually appear.