Readability Checker · red edition

Readability Checker

Analyze text with multiple readability formulas – real‑time stats

Enter text

Characters

Characters (no spaces)

Words

Sentences

Syllables

About scores

Flesch Reading Ease – higher is easier (90–100 = very easy).
Flesch-Kincaid Grade – U.S. school grade level.
Gunning Fog – years of education needed.
Coleman-Liau – based on characters per word.
SMOG – health literacy metric.
ARI – Automated Readability Index.

Real‑time

All statistics update as you type. The syllable counter is approximate (simple vowel group counting).

Relevant Tools

Creator & Maintainer

Faiq Ur Rahman is a web designer, digital product developer, and founder of Toolraxy, a growing platform of web-based calculators and utility tools. He specializes in building structured, user-friendly tools focused on health, finance, productivity, and everyday problem-solving.

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Why use this tool?

Improve audience engagement

Write content that your readers can understand.

Optimize for SEO

Search engines reward content that is clear and easy to read.

Save time

Instantly analyze text instead of manually checking.

Better communication

Improve clarity in blogs, emails, reports, or educational material.

About

The Readability Checker is a free online tool that helps you analyze how easy or difficult your text is to read. It calculates readability scores like the Flesch-Kincaid Grade Level and Gunning Fog Index, while also showing word count, sentence count, character count, reading time, and key phrases. Whether you’re a student, blogger, teacher, or content writer, this tool ensures your text matches the right audience level.

How to Use the Keyword Density Checker

Paste or type your text into the input box.
Click “Analyze Readability”.
Instantly view your readability score, grade level, word stats, and key phrases.
Adjust your writing style based on the results.
Use the “Clear Text” button to start fresh.

FAQs

What is a readability score?

A readability score shows how easy or difficult it is to read a piece of text. It usually corresponds to a grade level (e.g., 8th grade, college, etc.).

Which formulas does this tool use?

It uses Flesch-Kincaid Grade Level and Gunning Fog Index to calculate an average readability grade.

Who should use this tool?

Writers, bloggers, teachers, students, SEO experts, marketers, and anyone who wants their content to be clear and effective.

Does a higher grade mean better writing?

Not always. A higher grade means the text is more complex, which might be good for research papers but not for blogs or marketing copy.

Is this tool free to use?

Yes, it’s 100% free and works instantly in your browser.