Check whether your writing is clear, easy to follow, and comfortable to read. Get an overall readability score plus sentence-level feedback in seconds.
Press Quick Check on the left and your readability results will appear here.
Why Readability Matters
If the reading level of a page feels too demanding, people hesitate, reread, or leave halfway through. Our readability checker is built to show both the overall difficulty of a passage and the exact sentences most likely to create friction.
A document can feel mostly clear and still lose readers because of a few overloaded sentences. That is why we do not stop at a single top-line score.
The checker adapts to English sentence density and Japanese flow patterns, making it easier to catch phrasing that feels heavy, abrupt, or harder to process.
Grammar can be technically correct while the reading experience still feels stiff or exhausting. We look for the parts that increase cognitive load and reduce clarity.
How It Works
Paste your draft, run the check, and review the places where the writing asks too much from the reader.
Why Writers Use This Checker
This tool is designed for writers, marketers, educators, and teams who need clearer communication, not just a generic score.
Instead of telling you only that a page is difficult, the checker shows which sentences are most likely to make readers slow down or reread.
If your writing is too demanding, part of your audience will miss the point. Cleaner readability helps more people understand the message on the first pass.
Use it to review blog posts, ads, onboarding copy, documentation, learning materials, and public-facing text where clarity directly affects outcomes.
Grammar checks fix correctness. Readability review helps you decide whether the structure, pacing, and wording are actually easy for humans to process.
Sign in and run readability checks as often as you need. There are no credits required for this tool.
Each issue is explained in straightforward language, so you can revise quickly without needing to decode technical editorial jargon.
Frequently Asked Questions
Review clarity, reading difficulty, and sentence-level friction in seconds. Free after sign-in, with no credits required.