Readability Checker
Check your text's readability with Flesch-Kincaid and other standard scores — free and processed entirely in your browser.
About the Readability Checker
A readability score estimates how easy or difficult a piece of text is to read, based on sentence length and word complexity — useful for writers, educators, and content teams making sure their writing matches its intended audience, or meeting a specific reading-level requirement.
This tool analyzes your text using standard, published readability formulas — including the Flesch Reading Ease score and Flesch-Kincaid Grade Level — along with the word, sentence, and syllable counts behind the score. Everything runs locally in your browser using plain text analysis; your text is never uploaded to a server.
How to Check Readability
Step 1
Paste your text
Paste any text — an article, essay, or piece of writing.
Step 2
Review your scores
See your Flesch Reading Ease score, Flesch-Kincaid Grade Level, and supporting stats.
Step 3
Copy or adjust
Copy your results, or edit your text and see the scores update instantly.
Frequently Asked Questions
What does the Flesch Reading Ease score mean?
A 0-100 scale — higher means easier to read. Scores above 60 are considered easy for most adults; below 30 is very difficult, typical of dense academic or legal writing.
What does the Flesch-Kincaid Grade Level mean?
It estimates the US school grade level someone would need to easily understand the text — a score of 8 suggests writing an average 8th grader could follow.
How are these scores calculated?
Both formulas are based on average sentence length and average syllables per word — this tool counts words, sentences, and syllables in your text to compute them.
Is my text uploaded anywhere?
No. Analysis happens entirely in your browser.