Category: Text tools
Readability Score Checker
Score any text with the Flesch Reading Ease and Flesch-Kincaid Grade Level
Check how easy a piece of text is to read with the Flesch Reading Ease score and Flesch-Kincaid Grade Level, computed locally as you type. Nothing you paste is uploaded.
Everything on this page is processed in your browser. Nothing is uploaded.
What this tool does
The Flesch Reading Ease score rates text from 0 (very difficult) to 100 (very easy) based on sentence length and syllable count, while the Flesch-Kincaid Grade Level estimates the U.S. school grade needed to understand it. Both are widely used by writers, editors and SEO tools to judge whether copy is easy to skim. This tool counts words, sentences and syllables in your browser and applies the standard formulas instantly, so you can tighten sentences and swap in shorter words until the score matches your audience.
How to use it
- Paste or type a paragraph in the text box.
- Read the reading ease score, grade level and word/sentence/syllable counts.
- Shorten sentences or simplify words, and watch the score update live.
Privacy
This tool runs entirely in your browser. Your input is never uploaded, stored or shared — closing the tab removes it.
Frequently asked questions
- What does the reading ease score mean?
- Higher is easier: 90-100 is very easy (like a comic book), 60-70 is standard prose, and below 30 is very difficult, typical of academic papers.
- How is the grade level calculated?
- It combines the average sentence length and average syllables per word using the Flesch-Kincaid formula, giving a rough U.S. school grade needed to follow the text.
- Is anything uploaded?
- No. The text and score are calculated in your browser.