Readability Checker

Check how easy your English text is to read: Flesch reading ease, grade level, long sentences and hard words highlighted. Free tool.

Scores appear as soon as you paste text.

How to use Readability Checker

  1. Paste English text — a few paragraphs gives the most reliable score.
  2. Read the Flesch Reading Ease score and grade levels.
  3. Shorten the long sentences it lists to make the text easier.

Good to know

  • Flesch Reading Ease = 206.835 − 1.015 × (words ÷ sentences) − 84.6 × (syllables ÷ words).
  • Syllables are estimated with a standard rule set, so scores can differ slightly from other tools.
  • The formulas are designed for English text.

Privacy

Runs entirely in your browser. Nothing you enter or open here is uploaded.

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