Readability Score
Analyze text readability with Flesch, Fog, and other scores
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Try nowReadability Score Checker - Text Analysis Tool
Check the readability of your content with six different scoring algorithms. Our tool analyzes word complexity, sentence length, and syllable count for comprehensive readability analysis.
Paste your text into the analyzer and receive instant readability scores from six different algorithms: Flesch Reading Ease, Flesch-Kincaid Grade Level, Gunning Fog Index, SMOG, Coleman-Liau, and Automated Readability Index. Each score includes interpretation guidelines explaining what the numbers mean for your audience. The tool counts sentences, words, syllables, and complex words to calculate precise metrics. Processing happens entirely in your browser, so your content stays private. Use the multi-algorithm approach to get a comprehensive understanding of your text's accessibility across different measurement standards.
Content writers targeting general audiences aim for 8th-grade reading level to maximize comprehension across demographics. Technical writers check documentation to ensure it matches their audience's expertise without being condescending or overly complex. Marketing teams test landing page copy to confirm it's accessible to their target customer base. Academic editors verify that research summaries achieve appropriate simplicity for journal submission requirements while maintaining accuracy.
Break long sentences into shorter ones to quickly improve most readability scores without changing your message. Replace multi-syllable words with simpler alternatives when they don't sacrifice meaning or precision. Use active voice instead of passive constructions to reduce word count and improve clarity. Mix sentence lengths to create rhythm that engages readers even at lower grade levels. Remember that some topics inherently require complex terminology—aim for appropriate readability rather than the lowest possible score when writing for specialized audiences.
All processing happens directly in your browser. Your files never leave your device — no server uploads, no cloud storage, no data retention. The tool works offline once loaded, requires no registration, and is completely free with no usage limits.
Frequently Asked Questions
What is the Flesch Reading Ease score?
The Flesch Reading Ease score rates text on a 0-100 scale. Higher scores indicate easier text. A score of 60-70 is considered standard, easily understood by 13-15 year olds.
What is the Gunning Fog Index?
The Gunning Fog Index estimates the years of education needed to understand a text. A score of 12 means high school level, while a score of 6 means easily readable by most people.
How can I improve my readability score?
Use shorter sentences, simpler words, and avoid jargon. Break long paragraphs into smaller ones. Use active voice instead of passive voice, and aim for one idea per sentence.
What readability score should I target for web content?
For web content targeting a general audience, aim for a Flesch Reading Ease score of 60-70 and a Flesch-Kincaid Grade Level of 7-8. This ensures content is accessible to most readers.