Yellow Toolsby Yellow Solutions

Keyword Density Checker

Count every word, compare repeated phrases, and review target-keyword frequency without fake SEO scores or ranking guarantees.

  • Free to use
  • Local text processing
  • No URL scanning

Paste and analyze

Check words and repeated phrases

Your text stays in this browser. This tool does not visit or scan a website URL.

0 / 50,000 characters

Result

Keyword frequency results

Every result is calculated from the text you pasted.

Your analysis will appear here

Paste text and choose Analyze text to see every word and repeated phrase.

What is keyword density?

Keyword density describes how frequently a word appears relative to the total number of words in a piece of text. If a word appears twice in eight total words, this checker reports a frequency of 25%.

Two-word and three-word phrase percentages use the number of possible phrase positions as their denominator. This keeps each calculation transparent instead of presenting an unexplained score.

How to use this checker

  1. Paste article, landing-page, product, or other written content.
  2. Optionally enter an exact target keyword or phrase.
  3. Choose Analyze text.
  4. Review total words, unique words, and the sentence estimate.
  5. Switch between single words, two-word phrases, and three-word phrases.
  6. Filter the table or show common English words when needed.

How percentages are calculated

A single-word percentage is the word count divided by the total word count, multiplied by 100. Phrase percentages use the phrase count divided by all possible positions for a phrase of that length.

Percentages are rounded to two decimal places. Because of rounding, displayed values may add up to slightly less or more than 100%.

Common words and meaningful terms

The default single-word table hides a small local list of common English words such as “the,” “and,” and “is.” These words still count toward the total and every percentage. Select Show common words to display them.

Important limitations

  • There is no guaranteed ideal keyword-density percentage.
  • This checker measures repetition; it cannot judge accuracy, usefulness, writing quality, or search ranking.
  • The common-word filter is English-only, although Unicode words from other languages can still be counted.
  • Sentence count is an estimate based on punctuation and may differ for abbreviations or unusual writing styles.
  • Version one analyzes pasted text only and does not fetch website URLs.

Frequently asked questions

Will a particular percentage improve my Google ranking?

No percentage guarantees rankings. Use the results as an editing aid, not as a target that encourages unnatural repetition.

Does the tool upload my content?

No. The analysis runs inside the browser. The tool does not send your pasted text to an SEO or AI API.

Why are common words hidden?

Hiding frequent connecting words makes topic-related terms easier to scan. They remain included in totals and can be displayed at any time.

Need a deeper content review?

Frequency is only one small signal. Yellow Solutions can help connect search intent, useful page structure, technical SEO, and clear writing into a practical content strategy.