Advanced N-Gram SEO engine. Detect keyword stuffing and extract top search phrases instantly.
The Keyword Density Analyzer by GrowthSyntax is a free, browser-based SEO tool that extracts top keywords, 2-word phrases, and 3-word long-tail phrases from any content — and shows you their exact density percentage. Whether you are optimizing a blog post, landing page, or product description, the Keyword Density Analyzer helps you spot keyword stuffing, identify underused focus terms, and fine-tune your on-page SEO — instantly, privately, and without any sign-up.
A Keyword Density Analyzer is an SEO tool that counts how often a keyword or phrase appears in your content relative to the total word count, expressed as a percentage. For example, if "keyword density" appears 5 times in a 500-word article, its density is 1%. The GrowthSyntax Keyword Density Analyzer goes further by analyzing single keywords, 2-word bigrams, and 3-word trigrams — giving you a complete N-gram SEO picture of your content in seconds.
Keyword stuffing is the practice of overloading content with a keyword to manipulate search rankings — and Google penalizes it. The safe keyword density range is generally between 1% and 3% for any single term. Below 1% means your focus keyword may be underrepresented and Google may not clearly understand your topic. Above 3% triggers stuffing flags that can hurt your rankings. The Keyword Density Analyzer color-codes every result so you can see at a glance what is optimal, what is low, and what is over the limit.
Analyzes your content for single keywords (1-gram), 2-word bigrams, and 3-word trigrams — covering both short-tail and long-tail keyword analysis in one tool.
Color-coded density scores instantly flag keywords as low, optimal, or stuffing — so you can fix over-optimized content before publishing.
A one-click toggle lets you exclude common stop words like "the", "is", and "at" from analysis — giving you a cleaner, more meaningful keyword report.
Displays the top 15 most frequent keywords or phrases for each tab — sorted by count and showing exact density percentage for every entry.
Shows your total unique word count and estimated reading time at a glance — useful for evaluating content depth and audience engagement potential.
The Keyword Density Analyzer runs entirely in your browser. No text is sent to any server — your content stays completely private at all times.
Stop guessing whether your content is optimized or over-optimized. Use the Keyword Density Analyzer by GrowthSyntax to extract top keywords, detect stuffing, and fine-tune your on-page SEO — completely free, instantly accurate, and always private.