readability checker
Free Readability Checker
Analyze your content's readability with Flesch-Kincaid, Gunning Fog, and Coleman-Liau scores. Get grade level ratings and improvement suggestions.
Built for readability checker
Check whether the copy is easy enough to read and scan
This readability checker helps you understand whether a page is written at a level your audience can process quickly, especially on screens where dense copy underperforms.
It is useful for SEO content, landing pages, help docs, and newsletters where clarity affects engagement, conversions, and whether readers actually finish the piece.
It grades your text with three complementary formulas — Flesch Reading Ease (based on sentence length and syllables per word), the Gunning Fog Index (based on sentence length and the share of long words), and Coleman-Liau (based on characters per word instead of syllables) — so a single hard-to-read section shows up no matter which measure catches it.
Common use cases
- Review long-form content before publishing
- Simplify product or onboarding copy for broader audiences
- Find dense sections that need shorter sentences or easier wording
How to Use the Readability Checker
- 1Paste your text or article content into the text area
- 2View readability scores across multiple formulas
- 3Check the estimated grade level of your content
- 4Review highlighted complex sentences and difficult words
- 5Simplify your content based on the suggestions provided
Frequently Asked Questions
AI Search Guides
Connect this tool to the bigger AI-search workflow
Technical fixes and free tools help most when they support a stronger page program. These guides explain how AI-search visibility, answerability, and tracking fit together.
GEO
Generative Engine Optimization
The core GEO framework, case study, and operating model for AI search visibility.
AEO
Answer Engine Optimization
How to structure pages so answer engines can retrieve, trust, and cite them.
GEO vs SEO
GEO vs SEO
GEO vs SEO and SEO vs GEO: the difference between generative engine optimization and classic SEO, how much they overlap, and where AEO fits.
GEO SEO
GEO SEO
How generative engine optimization fits into modern SEO and why the overlap matters.
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