How to use the Readability Checker
- Enter – Paste text.
- Check – See scores and grade level.
- Download – Simplify the long sentences.
About Readability Checker
Paste a text to get Flesch Reading Ease, Flesch–Kincaid grade, Gunning Fog, SMOG and Coleman–Liau scores, an estimated grade level, and the longest sentences highlighted. Runs in your browser.
Frequently asked questions
What's a good Flesch score?
60–70 is plain English for most adults; 80+ is easy for younger readers; below 30 is very difficult (academic).
Does it work for languages other than English?
The formulas are designed for English; for other languages treat the scores as rough estimates.
Is the Readability Checker free?
Yes, completely free with no signup and no daily limit.
Does it work on my phone?
Yes. It works in any modern browser on iPhone, Android, Windows and Mac.