zxcvbn.now.sh
zxcvbn (by Dropbox) - password strength estimator as a service
Usage
var payload = {
password: 'emily'
};
fetch("https://zxcvbn.now.sh",
{
method: "POST",
body: JSON.stringify(payload)
})
.then(function(res){ return res.json(); })
.then(console.log)