Readability Checker
Estimate reading ease, sentence length, and long-word frequency for English prose.
Free browser tool
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Workspace
Use readability checker
Runs in this browser tab
Result
How to use it
Paste English prose to identify dense sentences and get an approximate reading-ease score.
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What to check
The score is a heuristic for English prose, not a quality grade or ranking factor.
Review the result before using it in a published page, application, or agent configuration.
Quick answers
Frequently asked questions
What does the readability score measure?
It estimates English reading ease from sentence length and syllable counts. It is a rough editing signal, not a quality grade.
Can I use this score for non-English copy?
The syllable heuristic is designed for English. For other languages, review clarity with a native reader or a language-specific measure.
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