Readability Score Checker
Check your writing's readability with Flesch Reading Ease, Flesch-Kincaid Grade Level, and Gunning Fog scores.
Runs entirely in your browser — your files are never uploaded to a server.
How It Works
1. Choose Your File
Drag & drop or select the file you want to work with.
2. Processed in Your Browser
Everything happens locally on your device — your file is never uploaded anywhere.
3. Download Your Result
Get your finished file instantly, ready to save or share.
Frequently Asked Questions
What's a good Flesch Reading Ease score?
Scores of 60-70 are considered standard, easily understood by 8th-9th graders. Higher scores (80+) are easier to read; lower scores (30 and below) indicate more difficult, academic-level text.
What's the difference between the three scores?
All three estimate reading difficulty using different formulas and produce slightly different results — Flesch Reading Ease gives a 0-100 score, while Flesch-Kincaid and Gunning Fog both estimate a US school grade level needed to understand the text.
How accurate are these scores?
They're a helpful estimate, not an exact measurement — syllable counting for arbitrary text is inherently approximate, a known limitation of any tool that doesn't use a full pronunciation dictionary.
What text length works best?
A paragraph or more gives a more reliable score than a single sentence — very short text can skew the results.