Readability Score
Calculate Flesch Reading Ease, Flesch–Kincaid grade level, and Gunning Fog index.
100% client-side · no upload
0
Flesch Reading Ease
0
F-K Grade Level
Within limit ✓
How to use
- Paste or type your English text into the box above.
- Scores update live once there is enough text to analyse.
- Flesch Reading Ease: 0–30 very difficult, 60–70 standard, 90–100 very easy.
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Frequently Asked Questions
- Is this readability checker free?
- Yes, completely free with no signup and no usage limits.
- Does my text leave my device?
- No. All analysis runs in JavaScript inside your browser. Nothing is sent to any server.
- Does it work on mobile?
- Yes. The tool is mobile-first and works on iPhone Safari and Android Chrome.
Last updated: By jarvisbox