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.

Free Keyword Density Checker

Count repeated words and calculate their percentage of your text. Use the results to review repetition, not as a target for Google rankings.

0 words

Ignore common words

Min length

Show top

Keyword Analysis

#	Keyword	Count	Density	Frequency

About this tool

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. The result is a writing diagnostic, not a ranking score. A percentage alone cannot tell whether a page is useful or whether its wording is unnatural.

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.

Runs in your browser · Updated September 24, 2026

How to use

Paste your content

Copy your article, blog post, product description, or any text into the input box above.

Set your options

Choose whether to filter stop words, set a minimum word length, and how many top keywords to display.

Click Analyze

The tool instantly counts every word and calculates the density percentage for each keyword in your content.

Review and optimize

Read repeated terms in context. Remove awkward repetition and add missing explanations where they help the reader. Do not add keywords just to reach a percentage.

Keyword density formula and a worked example

Density = word occurrences ÷ total words × 100. Paste “Blue shoes and blue bags” into the checker. It contains five words. “Blue” appears twice, so its density is 2 ÷ 5 × 100 = 40%.

With Ignore common words enabled, “and” is hidden from the table but remains in the five-word total. Minimum length and Show top also filter the displayed rows without changing the denominator. A high percentage in a short example is not a ranking recommendation.

What this checker counts

Letter and number sequences are counted without regard to case. Punctuation separates words, so hyphenated terms and contractions may count as multiple parts. Singular and plural forms remain separate. Languages without spaces between words may need a language-specific word counter.

Paste the article text rather than menus and footers if you want to review the article itself. For Google's guidance, read the keyword-stuffing policy and the people-first content guide.

Why use this tool

Instant analysis

Processes thousands of words in milliseconds, entirely in your browser.

Stop word filtering

Automatically removes common words so you focus on meaningful keywords.

Visual density bars

Frequency bars compare word counts. They do not label a keyword as good or bad for SEO.

CSV export

Copy results as CSV for spreadsheet analysis or reporting.

100% private

Your content never leaves your browser, no data is sent to any server.

Adjustable filters

Control minimum word length and limit results to focus on the data you need.

Use cases

Blog post optimization

Review repeated language and make sure the topic is explained clearly before publishing.

Competitor content analysis

Paste competitor articles to see which keywords they emphasize most.

Over-optimization check

Find repeated terms to review in context. A count alone does not prove keyword stuffing.

Product descriptions

Ensure e-commerce copy includes relevant product terms naturally.

Academic writing

Review essays and reports for overused terminology before submission.

Content audits

Quickly scan existing pages to refresh and rebalance keyword usage.

Frequently asked questions

What is keyword density?

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.

What is a good keyword density for SEO?

There is no universal ideal keyword density or published Google penalty threshold based on a percentage. Use relevant language naturally and answer the reader’s question. Keyword stuffing concerns unnatural repetition, not crossing a specific number.

What are stop words?

Stop words are common words like "the", "is", "and", "at", and "which" that carry little semantic meaning. This tool can hide a list of common English words from the results. They still count toward total words and density. This display filter does not describe how a search engine understands your text.

Is my content kept private?

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.

Can I export the keyword data?

Yes. Click the "Copy CSV" button after analyzing to copy the displayed results as comma-separated values, ready to paste into Excel, Google Sheets, or any data tool.

Do I need to install anything or sign up?

No. The Keyword Density Checker runs entirely in your browser with nothing to download and no account required — just paste your text and analyze.

Does it count single words or phrases?

It counts individual words and reports each one's frequency and density. It does not count exact multi-word phrases. The frequency of one word cannot establish how often a whole phrase occurs.

How many words can I analyze?

There is no fixed limit. Articles and long pages of several thousand words analyze instantly because everything is processed locally in your browser.