What is Readability Score?

Readability Score is an editorial assessment tool that measures how easily readers can comprehend a passage of text. It implements the recognized Flesch Reading Ease formula, a standardized metric that evaluates sentence length against word syllable counts to determine textual difficulty on a scale from 0 to 100.

Higher scores indicate straightforward prose that is easy for general audiences to understand, while lower scores reflect dense, complex academic writing. The tool provides clear perspective on text accessibility by translating the numerical score into an estimated school reading level, helping writers adapt their vocabulary and sentence structure for their intended audience.

How to use it

1. Paste your draft into the input area showing "Paste your article or paragraph...".
2. Click the "Check Readability" button to calculate readability metrics (enter at least 10 words).
3. Review the numerical rating under "Score" and the corresponding grade tier under "Level".
4. Check the total counts under "Words" and "Sentences" to guide your editorial revisions.

Why use this over alternatives

Many commercial writing assistants upload your personal text to cloud servers for remote processing, which risks exposing private correspondence, unpublished manuscripts, or sensitive legal drafts. You can evaluate documents of any subject matter without creating an account, paying subscription fees, or sending your writing across the internet.