Keyword Density Checker
Paste your article or page copy — see word frequency and density percentage live, so you can spot over-optimized or under-used keywords.
Keyword density
Keyword Density Checker — Spot Over- and Under-Used Keywords
This keyword density checker analyzes your pasted text and shows each significant word's frequency count and percentage share of your total word count — live, as you type.
Need the raw frequency list without the SEO framing? The word frequency counter shows the same data with a longer top-20 list.
Why keyword density matters for SEO
- Avoiding keyword stuffing — search engines can penalize content that repeats a keyword unnaturally often. Most SEO guidance suggests keeping any single keyword under roughly 2–3% density.
- Confirming topical relevance — if your primary keyword doesn't appear at all in the top words, your content may not be clearly signaling its topic.
- Balancing variation — modern SEO favors natural language and related terms (semantic variation) over repeating one exact phrase.
- Content audits — quickly see if a competitor's or your own older content over-relies on a single term.
How density is calculated
Density is each word's occurrence count divided by your total word count, shown as a percentage. Common stop words (like "the", "and", "is") are automatically excluded from the table so the results reflect meaningful keywords, not filler words.
All analysis runs entirely in your browser. Your text is never sent to any server. See also: word counter · FAQ.
Frequently Asked Questions
There's no official target from search engines, but a commonly used guideline is keeping any single keyword's density under roughly 2–3% of total words. Density well above that starts to look unnatural to both readers and search engines.
It's far less central than it was years ago — modern search engines focus on topical relevance, semantic variation, and content quality rather than exact keyword repetition. Density is still a useful sanity check against accidental keyword stuffing, but it shouldn't be the primary goal when writing.
Common stop words are automatically filtered out so the density table reflects meaningful, topic-relevant keywords rather than the most frequent words in the English language, which would otherwise dominate any text.
This tool shows density for your text's naturally most frequent words. To check one specific phrase, paste your content and scan the table for that term, or use Ctrl+F / Cmd+F on the page after pasting to search visually.