Free Tool
Free Readability Checker
Paste your article text and get Flesch, Flesch-Kincaid, Gunning Fog and SMOG scores, plus a list of hard-to-read sentences to fix. No sign-up needed.
Scores update automatically about 300ms after you stop typing.
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Flesch Reading Ease
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Flesch-Kincaid grade level
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Gunning Fog index
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SMOG index
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Estimated reading time
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Word count
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Sentence count
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Avg words / sentence
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Avg syllables / word
Paste some text to see your readability verdict.
Hard-to-read sentences
Sentences over ~25 words, or with a high share of complex (3+ syllable) words, listed here so you can simplify them.
No sentences flagged yet.
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