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Word Frequency Counter

Enter text and analyze word frequency instantly

1

About Word Frequency Counter

The Word Frequency Counter analyzes input text and automatically tallies each word's occurrence count and percentage. English text is split on spaces and punctuation, while Japanese text is analyzed by splitting on CJK character boundaries.

Flexible analysis options include case sensitivity toggle, automatic filtering of English and Japanese stop words (common function words like "the", "is", and Japanese particles), minimum word length setting, and maximum display limit for precise, purpose-driven analysis.

Real-time automatic analysis updates results as you type or modify text. Statistical information is automatically calculated, including vocabulary richness (Type-Token Ratio), average and median word length, and longest word. Export results to CSV or JSON formats.

Ideal for SEO keyword density checking, academic vocabulary analysis, translation quality review, marketing copy optimization, text mining, and document language profiling. Runs entirely in your browser, making it safe to analyze confidential documents.

How to use Word Frequency Counter

  1. Enter or paste text to analyze in the input area
  2. Adjust options (case sensitivity, stop word filtering, minimum word length, result limit) as needed
  3. Results update automatically in real-time as you modify the text
  4. Review the frequency-sorted word list, occurrence rates, and calculated statistics (vocabulary richness, word length info)
  5. Download results as CSV or JSON using the export buttons

Benefits of Word Frequency Counter

  • Supports English and Japanese with expanded stop words and customizable filters for highly accurate analysis
  • Runs entirely in your browser, making it safe to analyze confidential or privacy-sensitive documents
  • Real-time automatic updates let you see and compare results instantly as you revise text
  • Statistical metrics (vocabulary richness, word length) provide deep insight into writing style and language characteristics
  • CSV/JSON export lets you integrate results into spreadsheets and data analysis tools
  • Free, no installation or registration required

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