Spot unnatural repetition before Google does
Paste your text to see your most-repeated words and phrases, and check whether a specific keyword shows up too often to read naturally.
Text with keyword highlighted
Most frequent
Why Keyword Repetition Still Deserves a Check
Google confirmed years ago that keyword density isn’t a ranking factor — there’s no magic percentage that helps a page rank higher. But that doesn’t mean word repetition doesn’t matter at all.
Text that repeats the same word or phrase too often still reads as unnatural to an actual human, and content that feels stuffed tends to perform worse with readers even when it isn’t technically penalized by an algorithm.
How the Checker Works
Getting a useful read on your text takes three steps.
Paste Your Text
Drop in a paragraph, blog post, or article to analyze.
Check a Target Keyword
Enter a specific keyword or phrase to see its exact count and density, with a natural-reading assessment.
Review Top Phrases
See your most-repeated words and phrases across the whole text, filtered to skip common stopwords.
What This Tool Deliberately Doesn’t Do
No “Ideal Density” Target
There’s no recommended percentage shown for general word frequency, because implying one would contradict what Google has actually confirmed.
No Precision on Arbitrary Phrases
General top-phrase results show plain occurrence counts, not a density percentage, since a made-up precision on an arbitrary phrase isn’t honest.
Only Your Named Keyword Gets a Density Number
The one precise calculation this tool makes is for the specific keyword you type in — that’s the only well-defined number worth computing exactly.
No Stuffing-to-Rank Advice
The 4% caution threshold is framed as a readability concern for human readers, not an SEO instruction to hit a specific number.
Tips for Natural Keyword Usage
- Use your keyword once naturally, then switch to variations. Synonyms and related phrases read better than the exact same term repeated.
- Read your text out loud. If a word starts to feel repetitive when spoken, it usually is.
- Check your top phrases, not just your target keyword. Unintentional repetition of a filler phrase is just as noticeable to readers as keyword stuffing.
- Don’t chase a specific percentage. There’s no verified target — write for clarity first, and let the checker confirm nothing reads as unnatural.
- Use the stopword filter to find real patterns. Excluding “the,” “and,” and similar words surfaces the phrases that actually matter.
Frequently Asked Questions
Does keyword density affect Google rankings?
No — Google has directly stated there’s no ideal keyword density that improves rankings. This tool is meant to catch unnatural repetition for readers, not to optimize for an algorithm.
What counts as “too much” repetition?
There’s no universal number, but the tool flags a specific target keyword above roughly 4% density as potentially reading as repetitive — a readability signal, not an SEO rule.
Why don’t the top-phrase results show a percentage?
Showing a precise density for arbitrary phrases would imply a level of significance the data doesn’t actually have. Only your specifically named target keyword gets a real density calculation.
Should I exclude stopwords when checking phrases?
Generally yes — words like “the,” “and,” and “is” dominate raw frequency counts without being meaningful. The stopword filter is on by default for this reason.
Can I check a multi-word phrase, not just a single word?
Yes — the target keyword field accepts full phrases, and the density calculation accounts for the phrase’s total word count.
Is this tool free to use?
Yes — there’s no sign-up or account required. Paste your text and get instant results.
The WPOptimizers Keyword Density Checker is built for catching unnatural repetition, not for hitting an SEO target — because that target doesn’t actually exist.