Keyword Density Checker — Analyze Keyword Frequency Free
Check how often a keyword appears in your text and get its exact density percentage. Analyze single words, 2-word phrases, and 3-word phrases with SEO status indicators, keyword highlighting, and keyword stuffing detection.
Why Use a Keyword Density Checker for SEO
Keyword density is the percentage of times a target keyword appears in your content relative to the total word count. This keyword density checker shows you that number instantly, along with a colour-coded SEO status so you know whether you are in the optimal range, underusing the keyword, or tipping into territory Google may flag as keyword stuffing.
The optimal keyword density for SEO sits between 0.5% and 1.5%. Below that and search engines may not associate your page strongly enough with the term. Above 2.5% and you risk penalties. This tool also surfaces your top unigrams, bigrams, and trigrams — giving you a complete picture of how your content reads to a crawler.
The keyword highlight view shows exactly where your focus keyword appears in the text, so you can check distribution across the page, not just overall count.
What this keyword density checker does
How to use the keyword density checker
Paste your content
Copy and paste any article, product page, or blog post into the text area.
Enter your keyword
Type your focus keyword or phrase in the keyword field. Leave it blank to skip the density card and see only the frequency tables.
Analyze
Click Analyze Density. Your keyword count, density percentage, and SEO status appear instantly alongside the full phrase tables.
Adjust your content
If density is too low, add the keyword naturally in a heading or paragraph. If too high, replace some occurrences with synonyms and retest.
FAQ: Keyword Density Checker
Keyword density is the percentage of times a keyword appears in your content compared to the total word count. It matters because it signals to search engines what your page is about. Too low and your page may not rank for the target term. Too high and Google may interpret it as keyword stuffing, which can hurt rankings.
Most SEO professionals target a keyword density between 0.5% and 1.5%. This tool marks that range as Optimal. Densities between 1.5% and 2.5% are flagged as Acceptable but borderline. Anything above 2.5% is flagged as potential keyword stuffing. These are guidelines, not hard rules — context and content quality matter more than hitting an exact number.
Paste your content into the text area, type your focus keyword in the keyword field, and click Analyze Density. This keyword density checker calculates the count, percentage, and SEO status instantly. It also shows where the keyword appears across your sentences.
Keyword stuffing is the practice of overloading a page with a target keyword to manipulate search rankings. Google’s algorithms detect it and can penalise or demote pages that do it. The safest fix is to replace some exact-match occurrences with synonyms or semantically related phrases, and focus on making the content genuinely useful.
Yes. Enter a multi-word phrase in the keyword field and the checker counts exact-phrase occurrences and calculates its density. The frequency tables below also break down the most common 2-word and 3-word phrases in your text, which helps you spot unintended repetition or identify natural long-tail opportunities.
Yes. This keyword density checker is completely free with no word or usage limits. No account required. Everything runs in your browser so your content is never uploaded to a server.