Free Readability Checker
About Our Readability Checker
Improve your writing with our free online Readability Checker tool. This easy-to-use tool analyzes your text difficulty and instantly provides popular readability scores like Flesch Reading Ease, Flesch-Kincaid Grade Level, Gunning Fog Index, and SMOG Index. No login, no download, no API – just paste your content and check how easy it is to read.
Check Your Text Readability
Readability Results
What Does This Readability Checker Do?
Calculates Flesch Reading Ease Score
Measures how easy your text is to understand on a scale from 0-100.
Shows Flesch-Kincaid Grade Level
Indicates the U.S. grade level needed to understand your text.
Analyzes Gunning Fog Index
Estimates the years of formal education needed to comprehend the text.
Gives SMOG Index Score
Calculates the reading level required for full text comprehension.
Measures Sentence & Word Complexity
Analyzes average sentence length and word complexity metrics.
100% Browser-Based
No data upload, tracking, or server processing - your privacy protected.
How to Use the Free Readability Checker Tool
- Paste your text into the box above
- Click the "Check Readability" button
- Instantly view your readability scores and stats
- Use the results to improve your writing for blogs, reports, or SEO
Why Should You Check Text Readability Online?
Readability determines how easy it is for people to understand your writing. Whether you're writing a blog post, academic article, business report, or website content, it's essential to write in a way your audience can understand. With our free online readability checker, you can test your content before you publish it and ensure it fits the right reading level.
Perfect for Students, Writers, Bloggers & Professionals
This tool is designed for:
- Students writing essays or dissertations
- Bloggers and copywriters optimizing content for SEO
- Professionals creating clear reports and documentation
- Teachers and educators checking lesson readability
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Frequently Asked Questions
We use popular readability formulas like Flesch-Kincaid and Gunning Fog to evaluate how difficult a passage is to read. These formulas consider factors like sentence length, word complexity, and syllable count to determine readability scores.
Yes! This readability checker is 100% free with no signup required. There are no hidden fees or premium features - all functionality is available for everyone at no cost.
No. All processing happens in your browser. Nothing is saved or uploaded to any server. Your text never leaves your computer, ensuring complete privacy.
A Flesch score of 60–70 is ideal for general web content. Lower scores mean your text is more complex. For professional documents, aim for 50-60, while for consumer content, 60-70 is best.
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