Readability Score Checker
Paste or type your text below to instantly calculate readability scores using six industry-standard algorithms.
About the Readability Score
Analyze text readability with Flesch-Kincaid, Gunning Fog, and more. Optimize content for your target audience.
Why client-side?
Every byte you paste, type, or upload here is processed entirely inside your browser. Nothing is sent to a server, logged, or stored. That means it's safe to use this tool on production secrets, customer data, internal logs, and any input you would not paste into a hosted SaaS formatter.
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Frequently Asked Questions
- What is a readability score?
- A readability score estimates how easy or difficult a text is to read. Common formulas include Flesch-Kincaid, Gunning Fog, and Coleman-Liau, each producing a grade level or score.
- What readability formulas are used?
- The tool calculates Flesch Reading Ease, Flesch-Kincaid Grade Level, Gunning Fog Index, and other standard readability metrics.
- What is a good readability score?
- For general web content, aim for a Flesch Reading Ease score of 60-70 (8th-9th grade level). Simpler is usually better for broader audiences.