Readability Score
Measure how easy your text is to read with Flesch–Kincaid and Gunning Fog — computed in your browser
Text
Paste the passage to analyze
About this tool
Measure how easy your writing is to read with Flesch Reading Ease, Flesch–Kincaid Grade Level, and the Gunning Fog index — plus word, sentence, and syllable counts Readability Score runs in the browser on DevTools. There is no signup, and your input stays on this device unless the tool explicitly performs a live network lookup.
What this tool does not do
- Readability Score is a free in-browser utility, not a hosted API. It does not keep server-side history and is not a substitute for production verification in your own stack.
How do I use this tool?
How do I use Readability Score?
Open Readability Score, enter or paste your input, and copy the result. The page works without an account.
Related guides
Letter Frequency Analysis: How Frequency Stats Crack Substitution Ciphers
What the letter distribution in English looks like, how to use it to break a Caesar cipher, and what word and line stats reveal that individual letters miss.
Readability Scores Explained: Flesch–Kincaid and Friends
What readability formulas measure, how to read a Flesch Reading Ease score, and how to write text that scores well without dumbing it down.
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