Word Frequency Counter

Analyze word frequency in any text. Find the most common words, check keyword density, and filter out stop words.

What is a Word Frequency Counter?

A word frequency counter analyses text and produces a ranked list of how many times each word appears, along with its percentage of the total word count.

Word frequency analysis reveals the vocabulary structure of any text. Writers use it to detect overused words they did not notice. SEOs use it to audit keyword density and check that target terms appear at the right frequency. Researchers use it to study writing style and vocabulary richness. The stop word filter removes common function words so the meaningful content words rise to the top of the results.

ShelfCue processes all text locally in your browser. Nothing is sent to our servers. Your text is never stored, logged, or shared.
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How to Use Word Frequency Counter

  1. 1Paste your text into the input area.
  2. 2Enable or disable stop word filtering to show only meaningful content words.
  3. 3Set the minimum word length to filter out short words.
  4. 4Choose how many top words to show (10, 25, 50, or all).
  5. 5Sort the results by frequency, count, or alphabetically.

Features

  • Complete word frequency analysis with count and percentage
  • Optional stop word filtering (common function words removed)
  • Case-insensitive analysis by default
  • Minimum word length filter
  • Visual CSS bar chart showing relative frequency
  • Sort by most frequent, least frequent, or alphabetically

Common Use Cases

SEO keyword density audit

An SEO pastes a 1,500-word article and confirms their target keyword appears 9 times (0.6% density), within the 1–2% optimal range, with no over-optimisation risk.

Writing repetition detection

A novelist pastes a chapter and finds the word 'suddenly' appears 14 times, far more than intended, prompting them to vary language in 11 of the 14 instances.

Academic vocabulary analysis

A linguistics student analyses a 2,000-word speech transcript with stop words disabled, revealing the 20 most distinctive content words that define the speaker's rhetoric.

Frequently Asked Questions

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