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Keyword Density Analyzer
Paste your text, enter a word or phrase, and calculate its frequency locally in your browser.
No analysis yet. Your text is processed in this browser.
Top Keywords by Frequency
| # | Keyword | Count | Share of counted words |
|---|---|---|---|
| Run an analysis to see frequency results. | |||
Free Keyword Density Analyzer: Phrase Matching, Frequency, and Editing Checks
Repetition is easy to misjudge when you edit a long article, product description, or landing page. A phrase may feel overused because it appears in several headings, or it may be missing from a section where readers expect it. This free Keyword Density Analyzer gives you a transparent count that you can use during editing.
The browser-based tool calculates the text you provide on the page. Paste your content, enter a word or phrase to review, and select Analyze Density. The results show the detected word count, unique-word count, target matches, calculated density, and a frequency table. The result is a diagnostic signal, not a ranking score.
What keyword density actually measures
Keyword density is a descriptive ratio. It compares the number of matches for a selected word or phrase with the total number of words counted in the text:
Density = detected matches ÷ total words × 100
For example, if the phrase content audit appears twice in a 400-word passage, the basic phrase density is 0.5%. That number describes the supplied text only. It does not measure the quality of the explanation, the accuracy of the claims, the usefulness of the page, or its position in Google Search.
There is no universal percentage that guarantees visibility. Repeating a term so often that the writing becomes unnatural can become keyword stuffing, which Google lists as a spam practice when keywords are used to manipulate Search. Use this analyzer to find unusual repetition, then make an editorial decision based on meaning and readability.
How to use the Keyword Density Analyzer
- Paste an article, product description, email draft, or other text into the content box.
- Enter one word or a phrase such as content audit in the Target Keyword field.
- Leave Case sensitive unchecked when uppercase and lowercase versions should count as the same term.
- Use Ignore common English stop words when you want the frequency table to omit common English words. This setting does not remove words from the total-word denominator or the target-match count.
- Select Analyze Density.
- Review the total words, unique words, target occurrences, density, and top-frequency terms together.
- Use Copy Results or Download CSV when you want to keep the diagnostic output beside your editorial notes.
Test a short sample before analyzing a long document. Paste Content audit notes. This content audit is useful. and enter content audit. This page should report two phrase matches. The phrase matcher compares the words in order and does not count separate occurrences of “content” and “audit” as a phrase.
How phrase matching works
A single-word target and a multi-word phrase are not the same operation. A simple whitespace split can count individual tokens, but it cannot reliably determine whether adjacent words form the requested phrase. This version treats a phrase as an ordered sequence of word tokens. It ignores differences in repeated spaces and, when Case sensitive is off, compares normalized letter case.
Tokenization still has limits. Punctuation, apostrophes, hyphens, abbreviations, emojis, and languages with different word-boundary rules can produce different counts. Modern browsers can use JavaScript’s Intl.Segmenter for locale-sensitive word segmentation, but the result should still be treated as an editorial measurement rather than a linguistic judgment.
What each result means
Total Words
Total Words is the number of word-like tokens detected by the page’s tokenizer. It may differ from Microsoft Word, Google Docs, or another SEO tool because counting rules are not identical. Treat it as the denominator used by this tool, not as a universal word-count standard.
Unique Words
Unique Words shows how many different normalized tokens appear in the text. A lower number can indicate repeated vocabulary, but it does not automatically indicate poor writing. Technical documents and product pages naturally reuse important terms.
Keyword Occurrences
Keyword Occurrences is the number of complete matches for the target word or phrase. For a phrase, the words must appear in the requested order. The analyzer should not count separate occurrences of “content” and “audit” as a match for the phrase “content audit.”
Keyword Density
Keyword Density is the percentage calculated from the matches and the total word count. A high number is a prompt to read the passage naturally and look for unnecessary repetition. A low number is not a reason to insert the phrase into unrelated sentences.
Top Keywords by Frequency
The frequency table lists common terms after the selected filtering rules are applied. It can reveal repeated words, but it cannot decide whether the page covers a subject completely or answers a reader’s question. Frequency is evidence for review, not a substitute for review.
A practical editing workflow
Write the first draft for the reader’s problem, not for an arbitrary density target. Explain the subject, show the necessary steps, and use the terminology that makes the instructions precise. Then run the analyzer as one part of the final editorial pass.
If a phrase appears in nearly every sentence, read the affected paragraphs aloud. Remove repetition only where the meaning remains clear. Use pronouns or natural alternatives when they improve the writing, but do not replace a precise term with vague wording just to lower a percentage.
Next, review the title, main heading, introduction, examples, and conclusion manually. Each section should add information rather than repeat the same sentence in a new form. Google’s people-first content guidance emphasizes original, useful, well-written material and warns against creating content mainly to satisfy a search-engine metric.
Finally, verify important claims against primary or authoritative sources. A density result cannot check whether a statement is accurate, whether an example works, or whether the content is original.
What this tool does not do
The analyzer does not submit pages to Google, check backlinks, measure search intent, evaluate factual accuracy, detect plagiarism, generate an AI quality score, or predict rankings. It also does not replace an accessibility review, a copy edit, or a subject-matter review.
Google explains that search snippets are generated primarily from page content and may vary by query. A density percentage therefore cannot predict the wording of a future snippet. For page titles and descriptions, consult Google’s guidance on controlling search-result snippets and its SEO Starter Guide.
Privacy and limitations
This page is designed to calculate the supplied text in the browser without an account. Do not paste passwords, API keys, private customer information, unpublished legal material, or other sensitive data into any online tool unless you have verified its data path and security model. This tool does not send the text to an external API, but site owners should still test the published page and review its network behavior before making a broader privacy promise about the surrounding site.
The analyzer supports word-based analysis for multiple languages, including Arabic, English, French, Spanish, German, Portuguese, Italian, Turkish, Russian, Hindi, Japanese, Chinese, and Korean. The language selector controls word segmentation and the optional stop-word list. Some languages may still produce different results depending on browser support for Intl.Segmenter; test a short example when the text contains punctuation, unusual spacing, or mixed scripts.
Frequently asked questions
Is there an ideal keyword density for SEO?
No universal percentage guarantees good SEO. Use the analyzer to notice unusual repetition, then write for clarity and completeness. Do not add a phrase merely to reach a number.
Does the tool improve Google rankings directly?
No. It counts words and phrases in the text you provide. It does not submit a page, change metadata, earn links, or guarantee indexing, traffic, or rankings.
Does the tool support phrases with several words?
Yes. The analyzer compares the target phrase as an ordered sequence of tokens, so content audit is not counted as two unrelated single-word matches. Test a short phrase before relying on a long-document result.
Why can my count differ from another tool?
Tools may use different rules for punctuation, hyphens, apostrophes, numbers, Unicode characters, stop words, and phrase boundaries. Compare the rules before comparing the numbers.
Does the stop-word option support every language?
The tool includes starter lists for the languages in the selector. These lists are intentionally conservative and are not linguistic dictionaries. For professional editing, review the excluded words and test the results with representative text in the selected language.
Can I export the results?
Yes. The interface provides copy and CSV download controls. The exported data is a frequency diagnostic; it is not a ranking report or a Google Search forecast.
Is this an AI content checker?
No. The analyzer uses browser-side counting rules. It does not judge originality, factual accuracy, writing quality, or search intent with an AI model.
Conclusion
A keyword-density result is useful when it answers a narrow editorial question: “Where might this draft be repeating a term more than necessary?” It becomes misleading when treated as a target score. Use the analyzer with phrase matching enabled, inspect the surrounding sentences, improve the explanation where needed, and keep the final decision focused on readers.
For a related explanation of keyword measurement, see the Keyword Density Analyzer guide. You can also return to the Creative Tools Hub home page for other browser-based tools and practical workflows.