Readability Scorer estimates how hard a piece of text is to read. It reports the Flesch Reading Ease score and several grade-level formulas, along with the counts they are based on.
Syllable counting is an English heuristic, so treat the grades as estimates. It runs in your browser.
Around 60 to 70 is plain English suitable for a general audience. Below 30 is hard going, above 90 is very simple.
Each weighs sentence length and word difficulty differently. The tool also shows an average of them.
The formulas and the syllable rules are tuned for English, so results for other languages are not meaningful.
No. The tool runs entirely on this page.