Check Text Readability Instantly
Paste any text and get Flesch-Kincaid, Gunning Fog, SMOG, and 5 more readability scores in seconds. Free forever.
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What is Readability?
Readability is simply how easy it is to understand a piece of writing. It shows us whether a text is easy or hard to read for its intended audience.
Cathoven's Free Readability Tool
Think of our readability score checker as a friendly guide. It helps users find out how readable a text is. It uses special formulas to give a score, showing if a text is just right, too hard, or too easy for the intended readers. The checker is like a GPS for writers, pointing out if a text needs to be made more reader-friendly.
AND it's free forever!
Check Your Text NowWho is it For?
Whether you write, edit, teach, or create content — readability matters.
For Writers
Ensure your articles, blog posts, and books match your target audience. Get specific grade-level scores so you know exactly where you stand.
For Editors
Quickly assess document readability before publication. Identify sections that need simplification and verify compliance with style guides.
For Teachers
Match reading materials to student grade levels. Verify that worksheets, handouts, and tests are appropriate for your class.
For Content Creators
Optimize marketing copy, landing pages, and emails for maximum engagement. Lower readability scores often mean higher conversion rates.
8 Readability Formulas
Get a complete picture of your text's difficulty with every major readability metric.
Flesch Reading Ease
Also known as: Flesch Score
Scores 0-100 based on sentence length and syllable count. Higher scores mean easier reading. Most widely used readability metric.
Flesch-Kincaid Grade Level
Also known as: Flesch-Kincaid Grade
Uses sentence length and syllable count per word to estimate the education level needed to understand a piece of text. A score of 8.0 means an 8th grader can understand the text.
Gunning Fog Index
Also known as: Fog Index / Fog Score
Takes into account sentence length and the number of complex words to calculate a score, suggesting the level of education required to understand the content. Ideal score for public writing: 7-8.
SMOG Index
Also known as: Simple Measure of Gobbledygook
Calculates a score using the number of complex words in a text, indicating the years of education required for comprehension. Particularly accurate for healthcare and technical documents.
Dale-Chall
Also known as: Dale-Chall Readability Score / Dale-Chall Readability Index
Measures readability by focusing on a list of common words to evaluate how easily a text can be understood. Words outside the list increase difficulty. Best for educational content.
Automated Readability Index (ARI)
Also known as: ARI Index / ARI Score
Focuses on sentence length and character count per word to estimate the education level needed to understand a text. Faster to compute than syllable-based formulas.
Coleman-Liau Index
Also known as: CLI Index / CLI Score
Uses sentence length and character count per word to estimate readability. Does not require syllable counting, making it reliable for short texts.
Linsear Write
Uses sentence length and the number of difficult words to estimate the education level needed to comprehend a text. Developed for the U.S. Air Force, classifying words as easy or hard.
Unique Consensus Score
Unlike tools that show only one formula, Cathoven combines all 8 metrics into a single Readability Consensus score — giving you the most accurate, balanced assessment of your text's difficulty.
Try the Consensus ScoreHow to Use
Three simple steps to check your text's readability.
Paste Your Text
Go to Cathoven Language Hub and paste any English text into the Readability Analyser.
Click Analyse
Hit the Analyse button. Results appear instantly — no waiting, no sign-up required.
Review Your Scores
See grade levels from 8 different formulas plus the unique Consensus Score. Download or adjust your text.
Frequently Asked Questions
What is the difference between readability scores and Catile?
What readability scores does this tool provide?
Who should use a readability checker?
Is the Readability Checker free?
What is a good readability score?
Check Your Text Readability Now
Free forever. No sign-up required. Instant results across 8 readability formulas.
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