Free tool · Content & writing
Readability checker
Paste your text to get its Flesch Reading Ease score and five grade-level formulas, with hard sentences and passive voice highlighted so you know what to fix first.
Paste a draft on the left to get the Flesch Reading Ease score, five grade-level formulas and a sentence-by-sentence breakdown. Hard sentences and passive voice get highlighted so you know what to fix first.
How it works
Three steps, no signup.
Paste your text
Drop in an article, landing page or email draft.
Read your scores
See Flesch Reading Ease, five grade-level formulas and their average, plus checks for long sentences, passive voice and long paragraphs.
Fix the highlighted sentences
Hard sentences are marked amber and red in your text. Split them or swap long words, and the scores update as you type.
FAQ
Readability Checker questions.
What is a good Flesch Reading Ease score?
Scores run from 0 to 100. Higher is easier. Most web content aims for 60 to 70, which is plain English readable by 13 to 15 year olds. Below 30 reads as very difficult and academic.
What grade level should I target?
For general web audiences, aim for grade 7 to 9. Technical or professional content can sit higher, but lower grade levels reach more readers and tend to perform better on the web.
How is readability measured?
Each formula combines sentence length with word length. Flesch and Flesch-Kincaid count syllables, Gunning Fog and SMOG count words of three or more syllables, and Coleman-Liau and ARI count letters. The tool shows all five grade levels and their average.
Does readability affect SEO?
Indirectly. Search engines do not rank on a readability score, but clearer content keeps readers engaged, reduces bounce and earns more links, all of which help rankings.
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