Readability Checker

Paste your text to get a Flesch Reading Ease score, a U.S. grade level, and sentence-length stats — then simplify until it lands where you want.

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Flesch Reading Ease

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Grade Level (Flesch-Kincaid)

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Gunning Fog Index

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Avg words / sentence

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Avg syllables / word

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Complex words (3+ syll)

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Long sentences (25+ w)

Penman's AI rewriter can simplify your notes for you — one tap, done.

Frequently asked questions

What is a good Flesch score?

60–70 is considered plain English readable by most adults. Web content usually aims for 60+.

What does grade level mean?

The U.S. school grade needed to understand the text. Grade 8 or below reaches the widest audience.

Instant word, character, sentence counts plus reading time and keyword density.

See which words and phrases you overuse, ranked by count.

Turn rough notes and brain-dumps into clear, structured text.