Readability Checker
Get your Flesch readability score, word count, reading time, and sentence analysis instantly.
Paste your text to see readability metrics
How It Works
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Paste Your Text
Copy and paste your blog post, email, or any content. The analyzer works with any English text.
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Get Readability Metrics
See your Flesch score, word count, sentence count, reading time, and average sentence length at a glance.
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Improve Your Writing
Follow targeted SEO writing tips based on your content's specific metrics to write content that ranks and converts.
Frequently Asked Questions
What is the Flesch readability score?
The Flesch Reading Ease score rates text on a 0-100 scale. Higher scores mean easier reading: 70-100 is easy (conversational), 50-70 is fairly easy (standard), 30-50 is difficult (academic), and below 30 is very difficult (legal/technical). For SEO content, aim for 60-70.
Why does readability matter for SEO?
Google's algorithms favor content that provides a good user experience. If visitors leave your page quickly because the text is too complex, it signals low quality. Readable content keeps users engaged longer, reduces bounce rates, and increases the chance of earning backlinks and shares.
What is the ideal reading level for blog posts?
Most successful blog posts are written at a 6th-8th grade reading level (Flesch score 60-70). This doesn't mean 'dumbing down' your content — it means using clear language, short sentences, and simple structure so the widest audience can understand your expertise.
How long should sentences be for web content?
Aim for an average of 15-20 words per sentence. Sentences over 25 words are harder to parse on screens. Mix short punchy sentences with longer ones for rhythm. Break complex ideas into multiple sentences rather than using semicolons or long clauses.
What is the ideal word count for SEO articles?
For competitive keywords, 2,000+ words tend to rank best. However, quality beats quantity — a focused 1,500-word article can outrank a padded 3,000-word one. The sweet spot for most blog posts is 1,800-2,500 words with comprehensive coverage of the topic.
Is this readability checker free?
Yes, the OctoBoost Readability Checker is completely free with no limits. Analyze as many texts as you want without signing up. For automated content generation that's already optimized for readability and SEO, explore the full OctoBoost platform.