Readability Checker — Free Online Tool
Use Readability Checker free online — runs entirely in your browser, no data sent to servers. No sign-up required.
Your Text
59 words3 sentences337 characters
Flesch Reading Ease
37.7
Hard to read
Flesch-Kincaid Grade
12.9
US Grade 13
Molto difficile
Gunning Fog Index
14.6
Years of education needed
professional
Text Statistics
19.7
Avg words/sentence
104
Total syllables
10
Complex words (3+ syllables)
16.9%
Complex word %
Improvement Tips
- Simplify vocabulary — replace complex words with simpler alternatives
- Reduce complex words — currently 17%, target under 15%
Frequently Asked Questions about Readability Checker
- Is Readability Checker completely free to use?
- Yes, Readability Checker is 100% free with no sign-up, no watermarks, and no usage limits.
- Is my data private?
- Readability Checker runs entirely in your browser — no data is ever sent to our servers. Your content stays on your device.
- Does it work offline?
- Once the page has loaded, Readability Checker works fully offline in your browser — no internet connection is required.
- Can I analyse multiple pages or URLs?
- Yes, you can use the tool for as many pages or URLs as you need — there are no daily or monthly usage limits.
- Does Readability Checker work on mobile and tablet?
- Yes, Readability Checker is fully responsive and works in all modern browsers on desktop, tablet, and mobile.
This tool runs entirely in your browser. No data is ever sent to our servers.