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Readability Analyzer

Analyze text readability with multiple indices

About Readability Analyzer

What is Readability Analyzer?

Comprehensive readability analysis using six different indices. Highlights complex sentences and hard words, shows grade level equivalents, and provides word frequency analysis.

Features & Benefits

  • Six readability indices calculated simultaneously
  • Highlights complex sentences over 25 words
  • Marks hard words with 3+ syllables
  • Grade level equivalent for each score
  • Word frequency analysis (top 20 words)
  • Overall assessment with improvement suggestions

Frequently Asked Questions

Which readability index should I use?
Flesch Reading Ease is most popular for general content. Gunning Fog is common in business. Use multiple indices for a complete picture.
What do the scores mean?
Each index maps to a US grade level. Lower grade levels mean easier text. Most web content should target 6th-8th grade level.
How are syllables counted?
The tool uses a vowel-group counting heuristic which is accurate for most English words. Some edge cases may vary.

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100% Private & Secure

This tool runs entirely in your browser. Your files and data never leave your device and are not uploaded to any server.