Readability Checker
Check Flesch readability and grade level in one click — perfect for blog posts, marketing copy and educational content.
What is Readability Checker?
Hard-to-read content kills engagement and SEO performance. Most great web writing targets grade 7-9 reading level.
Paste your content and see your score, grade level and improvement suggestions.
If you're writing marketing copy, you stay accessible to a wide audience. If you're publishing blog posts, you match Google's readability bias. If you're producing educational content, you match the right age band.
How to use Readability Checker
Four steps. No setup, no signup.
Step 1
Paste your content
Step 2
See readability score and grade level
Step 3
Check sentence and word complexity
Step 4
Edit to simplify if needed
Example
A complex sentence vs a plain one.
Input
The utilization of complicated terminology disincentivizes comprehension.
Output
Flesch score: 9 (Very hard) Grade level: 17 Suggestion: shorten and simplify.
Why Readability Checker is useful
- ✓
See your Flesch score and grade level instantly.
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Match Google's preference for readable, accessible content.
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Catch jargon and long sentences before publishing.
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Edit live and watch the score improve as you simplify.
Common questions
What's a good Flesch score?
60-70 is plain English. Above 70 reads like a magazine.
Tip: Most blog content targets 60+, marketing 70+.
How is grade level calculated?
From average sentence length and syllable count per word.
Tip: Shorter sentences and shorter words drop the grade.
What grade should I target?
Grade 7-9 for general web content. Lower for marketing.
Tip: Hemingway-style writing targets grade 5-6.
Does Google care about readability?
Indirectly yes. Readable content earns longer dwell time and better rankings.
Tip: Combine with topical depth for best results.
Last reviewed: April 2026 · Free, browser-based, no signup.
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