Readability Checker
Analyze your text with 6 readability formulas including Flesch-Kincaid, Gunning Fog, and SMOG. Get instant scores, statistics, and suggestions to improve your writing clarity.
💡 All analysis happens in your browser — your text is never sent to any server, ensuring complete privacy.
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How to Use
- 1 Paste or type your text into the text area above. You can enter up to 50,000 characters, or click "Load Sample" to try with example text.
- 2 View your Flesch Reading Ease score in the main display. This score ranges from 0-100, with higher scores indicating easier-to-read text.
- 3 Review all 6 readability scores including Flesch-Kincaid Grade, Gunning Fog, SMOG, Coleman-Liau, and ARI to understand your text's reading level.
- 4 Check the suggestions to identify areas for improvement, such as long sentences or complex words. Use the "Copy Report" button to save your analysis.
Frequently Asked Questions
What is the Flesch Reading Ease score?
The Flesch Reading Ease score measures how easy your text is to read on a scale of 0-100. Scores of 90-100 indicate 5th-grade level (very easy), 60-70 indicates standard reading level (most newspapers), and scores below 30 indicate college graduate level (very difficult). Most general audience content should aim for 60-70.
What is the Flesch-Kincaid Grade Level?
The Flesch-Kincaid Grade Level translates your text's readability into a US school grade level. For example, a score of 8.0 means an 8th grader can understand your text. Most newspapers target grades 7-8, while academic papers typically score 12-16.
How does the Gunning Fog Index work?
The Gunning Fog Index estimates the years of formal education needed to understand your text. It considers sentence length and the percentage of complex words (3+ syllables). A score of 12 means high school senior level, while 17+ indicates graduate-level difficulty.
What is a good readability score?
The "best" score depends on your audience. For general web content, aim for Flesch Reading Ease of 60-70 (8th-9th grade level). Technical documentation might target 40-50 (college level). Marketing copy often aims for 70+ to maximize accessibility.
Is my text stored or shared?
No. All analysis happens entirely in your browser. Your text is never sent to any server, stored, or shared. This tool is 100% private and works offline once loaded.