Password strength (zxcvbn)

A password strength estimator inspired by password crackers.

zxcvbn documentation share-external-link-1


Use the data-zxcvbn attribute within a progress bar. With this attribute you can define the target input password field and additional text which tells the user whether the password is weak or strong.

<input type="password" class="form-control mb-3" id="password" autocomplete="off" placeholder="Your password">

<div class="d-flex justify-content-between align-items-center mt-3 h-15px">
    <div class="progress d-flex flex-grow-1 h-10px">
        <div data-zxcvbn='{"input": "#password", "text": "#progressText"}' class="progress-bar" role="progressbar" aria-valuemin="0" aria-valuemax="100"></div>
    <span class="fs-6" id="progressText"></span>