๐ Analyzed entirely in your browser - your text is never sent to a server.
Three trusted readability formulas, combined for a steadier estimate - all computed privately in your browser.
The checker uses established readability formulas - Flesch Reading Ease, the Flesch-Kincaid grade level and the Automated Readability Index - based on your text's sentence length, word length and syllable counts. It averages the grade estimates for a steadier result and, for the UK, converts that to an approximate reading age in years.
No. All the analysis runs in your browser using JavaScript - your text is never sent to a server, stored or logged. You can even use it offline once the page has loaded.
Yes, completely free and with no login. It's a free tool from LessonHQ, the AI lesson-pack generator for teachers - we built it hoping you'll try the generator too, but the checker has no catch.
Aim to match the grade level of the text to your students' grade, or slightly below for independent reading. A reading-ease score of 60-70 is comfortable for most middle-school readers; push higher for advanced classes and lower for younger or supported readers.
Absolutely - paste a worksheet, exam question or reading passage and adjust it until the grade level matches your class. Then generate a full, level-appropriate lesson on the same topic in about 60 seconds with the LessonHQ generator.