Read the terms for me.
What this does and does not do
It finds language, not meaning. A clause it flags may be perfectly ordinary and a clause it misses may be the one that matters, so treat it as a way of finding where to look in nine thousand words rather than a substitute for reading them. It is not legal advice.
The reading level is an estimate. Counting syllables exactly needs a pronunciation dictionary, and this uses the usual approximation, which is wrong on roughly one word in twenty. That error is small next to the difference between a contract at grade 12 and one at grade 18, which is what the number is for.
The two scores are Flesch Reading Ease and the Flesch Kincaid grade level, both from work done for the United States Navy and both still cited in plain-language guidance. They measure sentence length and word length. They cannot tell whether a sentence is fair, only whether it is hard.
Where it goes
Nowhere. The text you paste stays in this browser: there is no request anywhere in this page, no analytics on it, and nothing is stored. That matters more here than on the other calculators, because the thing you are most likely to paste is a contract somebody sent you.
The patterns this belongs to
Free, and staying that way. If it found something you would have signed without reading, that is the whole point of the guide.
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