Check keyword frequency and keyword density in your content with our free Keyword Density Checker. Paste your text to find out how often words and phrases appear, review their percentage of total words, and identify the terms used most frequently. No sign-up or paid API is required to analyze text in your browser.
Check keyword frequency and density in text or a public webpage URL.
Text analysis runs locally in your browser.
The tool fetches readable page text through the SofterInsight server endpoint. Some websites may block automated requests or redirects.
| Keyword / phrase | Occurrences | Density |
|---|
A keyword density checker is an SEO tool that helps you measure how frequently a word or phrase appears in your content compared with the total number of words. It can help bloggers, website owners, copywriters, and SEO professionals review keyword usage before publishing an article or updating an existing webpage.
With the free SofterInsight Keyword Density Checker, you can analyze pasted text or retrieve readable text from a public webpage URL. Review keyword frequency, compare single words with longer phrases, and identify terms that appear repeatedly in your content. The results can help you spot excessive repetition, understand your topic coverage, and make more informed content edits.
You do not need to install SEO software or learn a complicated workflow. Follow these steps to check keyword density in an article, blog post, landing page draft, or supported public webpage.
Select Text Analysis and paste your article into the text box. Alternatively, choose URL Analysis and enter the public webpage address you want to review.
Analyze individual words or phrases containing two, three, four, or five words. Longer phrases can help you review more specific expressions used throughout an article.
Set the minimum number of occurrences, choose a sorting method, and decide whether common English words should be excluded. Search and filter the resulting keyword list as needed.
Examine the frequency and density figures, review highlighted terms in the text preview, and export the results as a CSV or TXT file for your content workflow.
Keyword density expresses how often a keyword appears relative to the total word count. The calculation is straightforward, but the result depends on the text being analyzed and how keyword occurrences are counted.
Keyword density (%) = (Keyword occurrences ÷ Total words) × 100
For example, imagine a 1,000-word article contains the phrase "keyword research" 10 times. Using the formula above, its density is 1% when each occurrence of that two-word phrase is counted once. This is a mathematical measurement, not a recommendation that every article should use a keyword at that percentage.
| Metric | Example value |
|---|---|
| Total words in the article | 1,000 |
| Occurrences of "keyword research" | 10 |
| Calculated phrase density | 1% |
Density is only one way to inspect content. It does not measure whether an article answers a searcher's question, provides original information, covers a topic thoroughly, or deserves to rank above competing pages.
Keyword frequency and keyword density are related, but they describe different measurements. Frequency is the number of times a term appears. Density expresses that frequency as a percentage of the total word count.
| Measurement | What it tells you | Example |
|---|---|---|
| Keyword frequency | How often a term appears | 8 occurrences |
| Keyword density | Occurrences relative to total words | 0.8% in a 1,000-word text |
| Phrase analysis | How often a multi-word expression appears | "content optimization" |
Looking at both frequency and density provides more context than looking at either number alone. A phrase may appear more frequently in a longer article without necessarily dominating the writing.
A keyword density analyzer can support your on-page content review, but the goal should be clear, useful writing rather than reaching an arbitrary percentage. Start with the purpose of the page, then use keyword data to identify possible improvements.
There is no universal keyword density percentage that guarantees Google rankings. A suitable level of repetition depends on the topic, the wording required to explain it, the article's length, and the context in which the phrase appears.
Instead of trying to force a keyword into every paragraph, use your keyword density checker to find patterns that deserve a closer look. If a phrase repeatedly interrupts the natural flow of your writing, rewrite those sentences. If the phrase is necessary to explain the topic clearly, it may be appropriate to keep it.
Keyword stuffing means filling a page with keywords or numbers primarily to manipulate search rankings. It can make content repetitive, difficult to read, and less useful to visitors. Repeating a phrase excessively in headings, paragraphs, lists, or other page elements solely to influence search engines can become a spam issue.
Use a keyword frequency checker to identify unusually repeated expressions, then read the affected sections. Replace unnecessary repetition with clearer wording where appropriate. Do not assume that a particular density score alone proves a page is engaging in keyword stuffing; the purpose and context of the content matter.
Single-word analysis can reveal frequently used terms, but it does not always show how those words work together. Multi-word phrase analysis can help you inspect expressions that are more specific to your topic.
For example, an article about website performance might repeatedly use terms such as "page speed", "website performance", or "image compression". Reviewing these phrases separately can help you see which expressions recur and whether your content explains the related concepts clearly.
Choose a phrase length that fits your review. Shorter phrases are useful for general patterns, while longer phrases can reveal repeated wording. Excluding common English words may reduce noise, but it can also remove meaningful phrases that contain words such as "for", "with", or "and". Compare settings when the results look incomplete.
Best for drafts, unpublished articles, product descriptions, landing-page copy, and text you want to review before publishing. Paste the content directly into the tool.
Best for checking readable text retrieved from a public webpage. It can help you review a published article or compare your own pages during a content audit.
URL analysis depends on whether the webpage can be retrieved and parsed by the server. Redirects, access restrictions, anti-bot protection, dynamically rendered content, and other technical limitations may prevent some pages from being analyzed. The extracted text may also differ from the full page a visitor sees.
When comparing pages, remember that keyword density alone cannot establish which page has better content or is more likely to rank. Review search intent, topic coverage, page usefulness, and the quality of the information as well.
Yes. You can use the SofterInsight Keyword Density Checker to analyze pasted text and try URL analysis without purchasing a keyword-density subscription.
Yes. The tool runs in your browser for text analysis, so you can paste your content directly into the page. URL analysis uses the SofterInsight server to retrieve webpage text.
Yes. Select URL Analysis and enter a public HTTP or HTTPS webpage address. Results depend on whether the server can retrieve and extract readable text from that page.
Not by itself. There is no single keyword density percentage that guarantees a higher position. Focus on relevant, helpful content and use frequency results to identify repetition that may need editing.
Divide the number of times a keyword or phrase appears by the total number of words, then multiply by 100. For example, 10 occurrences in 1,000 words equal 1% using this calculation.
It depends on your goal. Excluding common words can make some reports easier to review, but it may remove useful phrases that contain those words. Try both settings if important expressions disappear from the results.
Yes. After analyzing content, use the Copy results, Download CSV, or Download TXT option to save or reuse the displayed keyword frequency and density report.
No. It measures keyword frequency and density in the text it receives. A complete SEO review may also require checking search intent, indexing, internal links, page titles, content quality, performance, and other relevant factors.
Use the free keyword density tool above to examine keyword frequency, review repeated phrases, and make thoughtful edits to your next article or webpage.
Write for your readers first, then use SEO data to help make your content clearer and more useful.