Plagiarism & Writing
Readability Checker
Analyze text readability with Flesch Reading Ease and Flesch-Kincaid Grade Level scores. Get insights on sentence complexity and reading time.
100% private — processed in your browser only
How to use Readability Checker
1
Paste your text
Enter the text you want to analyze in the box below.
2
Click Analyze Readability
The tool runs Flesch formulas on your text.
3
Review scores
See reading ease, grade level, complexity metrics, and reading time.
Your privacy is protected
This tool runs entirely in your browser. Files you upload are never sent to any server — they are processed locally using JavaScript and immediately discarded when you close the page.
Frequently Asked Questions
What is Flesch Reading Ease?
A score from 0–100. Higher scores mean easier text. 60–70 is considered plain English suitable for most readers.
What is Flesch-Kincaid Grade Level?
Maps text complexity to a US school grade level. A grade of 8 means an 8th grader could understand the text.
What are complex words?
Words with 3 or more syllables. High complex word counts make text harder to read.