Free Tool by SearchVector
Free Readability Checker
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Paste text or load a page to get Flesch reading ease, five grade-level scores, reading time and the long sentences that make it hard to read.
Write for the way people actually read
Readability formulas estimate how hard a text is from sentence length and word length. This checker runs six of the most used — Flesch reading ease, Flesch–Kincaid, Gunning fog, SMOG, Coleman–Liau and ARI — and points to the sentences most worth shortening.
Scores are designed for English and use an estimated syllable count. Aim for reading ease 60+ for general web content.
Flesch, FK grade, fog, SMOG, Coleman–Liau, ARI.
Update as you type.
Over 25 words, listed.
Check a live page.
About the readability checker
Six formulas
Included
Flesch, FK grade, fog, SMOG, Coleman–Liau, ARI.
Live scores
Included
Update as you type.
Long sentences
Included
Over 25 words, listed.
Text or URL
Included
Check a live page.
How it works
Use the readability checker in three steps
Paste or load text, read the scores, fix long sentences.
01
Paste or load text
An article, page or email.
02
Read the scores
Ease and grade level.
03
Fix long sentences
Split and simplify.
Readability checks for clearer content
Scores plus what to fix.
Reading ease
With a plain-language label.
Grade levels
Five formulas averaged.
Long sentences
Highlighted for editing.
Reading time
At 238 words per minute.
Free Readability Checker FAQs
Common questions about the readability checker.