Test Password Strength While Typing – checkforce.js

The checkforce.js JavaScript library helps you check the password strength by test the length, letters, numbers, special characters you typed in a password field.

Also provides a visual feedback that displays the current password strength (weak, normal, strong) with a progress bar.

Compatible with Bootstrap 4 and Materialize framework.

How to use it:

Download and import the checkforce’s files.

# NPM
$ npm install checkforce.js --save

<link rel="stylesheet" href="css/checkforce-style.css">
<script src="checkforce.min.js"></script>

Create an empty container next to the password field that will display the feedback of the password strength.

<input type="text" id="password">
<div class="feedback"></div>

Initialize the checkforce.js on the password field and done.

var render = document.querySelector('.feedback');
CheckForce('#password').checkPassword(function(response){
  render.innerHTML = response.content;
});

Enable Bootstrap or Materialize theme.

CheckForce('#password',{
  BootstrapTheme:true
}).checkPassword(function(response){
  render.innerHTML = response.content;
});
CheckForce('#password',{
  MaterializeTheme:true
}).checkPassword(function(response){
  render.innerHTML = response.content;
});

Changelog:

v2.3.0 (12/05/2018)

• change function size and letters fn 8 2018