Client-side readability analysis
Readability Score Checker
Analyze readability instantly with Flesch Reading Ease, Flesch-Kincaid Grade, Gunning Fog Index, and SMOG. See sentence-level difficulty and practical suggestions in real time.
Paste Your Text to AnalyzeFree forever
Unlimited use
No signup
Local processing
Input
Paste your text here to analyze readability.
Word count
0
Sentence count
0
Character count
0
Sentence breakdown
Find long or complex sentences quickly.
| Sentence text | Word count | Difficulty | Indicator |
|---|---|---|---|
| Paste text to see sentence-level analysis. | |||
Flesch Reading Ease
0
Easy
Higher scores are easier to read.
Flesch-Kincaid Grade
0
Medium
Estimates U.S. school grade level.
Gunning Fog Index
0
Medium
Higher scores indicate denser writing.
SMOG Index
0
Medium
Focuses on complex words and sentence count.
Insights panel
Overall readability
Easy
Suggested audience
Grade 6–8
Suggestions
Use shorter sentences, replace complex words, and reduce dense phrasing.
Why people use it
Helpful for essays, blog posts, landing pages, scripts, emails, and AI-assisted drafts that need clearer structure.
It works well as a quick quality check before publishing or editing.
Features
Instant readability scoring
Calculate readability score and grade level with no waiting.
Multiple scoring formulas
Use Flesch Reading Ease, Flesch-Kincaid, Gunning Fog, and SMOG together.
Sentence-level analysis
Spot difficult sentences instead of relying only on one overall number.
100% client-side
Privacy-friendly processing with pure JavaScript and zero API usage.
Visual feedback
Green, yellow, and red indicators make readability easy to understand.
Practical suggestions
Get concrete clarity tips, not just scores.
Use cases
Students
Improve essays and reports before submission.
Bloggers
Improve SEO readability and keep content easier to scan.
Copywriters
Optimize clarity and engagement across landing pages and emails.
Teachers
Evaluate whether content matches the target reading level.
FAQs
A readability score estimates how easy or difficult text is to read based on sentence length, word length, and complexity.
It measures how easy a text is to read. Higher scores generally mean simpler text.
That depends on the audience. General web content often works well around middle-school to early high-school readability.
Use shorter sentences, simpler words, and clearer structure. Break up dense paragraphs and reduce jargon.
Yes. This version is fully client-side and free to use.
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