Measure keyword frequency and density percentage in any text to improve your SEO.
| # | Keyword | Count | Density | Frequency |
|---|
The Keyword Density Checker analyzes any block of text and reveals how often each word appears, expressed both as a raw count and as a percentage of total words. Knowing your keyword density helps you write content that ranks well without over-optimizing, which search engines can penalize.
The tool filters out common stop words (like "the", "is", "at") so you see only the meaningful terms. You can adjust the minimum word length and the number of results shown to focus on exactly the keywords that matter for your page.
Reviewed by the ToolBrainy Team · Runs entirely in your browser · Last updated July 2026
Copy your article, blog post, product description, or any text into the input box above.
Choose whether to filter stop words, set a minimum word length, and how many top keywords to display.
The tool instantly counts every word and calculates the density percentage for each keyword in your content.
Check which keywords dominate your content, then adjust your writing to hit the ideal 1-3% density for target terms.
Processes thousands of words in milliseconds, entirely in your browser.
Automatically removes common words so you focus on meaningful keywords.
Color-coded frequency bars make it easy to spot over-used or under-used terms at a glance.
Copy results as CSV for spreadsheet analysis or reporting.
Your content never leaves your browser, no data is sent to any server.
Control minimum word length and limit results to focus on the data you need.
Check that your focus keyword appears at the right frequency before publishing.
Paste competitor articles to see which keywords they emphasize most.
Identify keyword stuffing before search engines penalize your page.
Ensure e-commerce copy includes relevant product terms naturally.
Review essays and reports for overused terminology before submission.
Quickly scan existing pages to refresh and rebalance keyword usage.
Keyword density is the percentage of times a specific word appears in a piece of content relative to the total word count. A density of 1% means a word appears once per 100 words. Most SEO experts recommend keeping your target keyword between 1% and 3%.
Generally, aim for 1-2% density for your primary keyword. Anything above 3-4% may trigger keyword stuffing penalties from search engines. Natural, reader-first writing tends to hit the right range automatically when you know the ideal figure to target.
Stop words are common words like "the", "is", "and", "at", and "which" that carry little semantic meaning. Search engines largely ignore them when indexing pages. Filtering them out lets you focus on the content words that actually affect your rankings.
Yes. All analysis runs directly in your browser using JavaScript. Your text is never uploaded to any server, making this tool safe to use even with unpublished or confidential content.
Yes. Click the "Copy CSV" button after analyzing to copy the full results table as comma-separated values, ready to paste into Excel, Google Sheets, or any data tool.
No. The Keyword Density Checker runs entirely in your browser with nothing to download and no account required — just paste your text and analyze.
It counts individual words and reports each one's frequency and density. To gauge a multi-word phrase, look at the density of its most distinctive word and read the results alongside your full copy.
There is no fixed limit. Articles and long pages of several thousand words analyze instantly because everything is processed locally in your browser.