Password Strength Checker Javascript

About

Javascript strength checker/meter that allows you to test the strongness of your password.

Features

a) Categorise your passwords as strong, good or weak.
b) Usage of numbers and special characters yields best results.
c) Provides simple and reliable strength indications.
d) Type in the text box below to check the intensity.

Preview

©h

Code

Javascript

<!-- Script by hscripts.com -->

<script type="text/javascript">

var pass_strength;

function IsEnoughLength(str,length)
{
	if ((str == null) || isNaN(length))
		return false;
	else if (str.length < length)
		return false;
	return true;
	
}

function HasMixedCase(passwd)
{
	if(passwd.match(/([a-z].*[A-Z])|([A-Z].*[a-z])/))
		return true;
	else
		return false;
}

function HasNumeral(passwd)
{
	if(passwd.match(/[0-9]/))
		return true;
	else
		return false;
}

function HasSpecialChars(passwd)
{
	if(passwd.match(/.[!,@,#,$,%,^,&,*,?,_,~]/))
		return true;
	else
		return false;
}


function CheckPasswordStrength(pwd)
{
	if (IsEnoughLength(pwd,14) && HasMixedCase(pwd) && HasNumeral(pwd) && HasSpecialChars(pwd))
		pass_strength = "<b><font style='color:olive'>Very strong</font></b>";
	else if (IsEnoughLength(pwd,8) && HasMixedCase(pwd) && (HasNumeral(pwd) || HasSpecialChars(pwd)))
		pass_strength = "<b><font style='color:Blue'>Strong</font></b>";
	else if (IsEnoughLength(pwd,8) && HasNumeral(pwd))
		pass_strength = "<b><font style='color:Green'>Good</font></b>";
	else
		pass_strength = "<b><font style='color:red'>Weak</font></b>";

	document.getElementById('pwd_strength').innerHTML = pass_strength;
}
function ctck()
{
     var sds = document.getElementById("dum");
     if(sds == null){
        alert("You are using a free package.\n You are not allowed to remove the tag.\n");
     }
     var sdss = document.getElementById("dumdiv");
     if(sdss == null){
         alert("You are using a free package.\n You are not allowed to remove the tag.\n");
     }
}
document.onload ="ctck()";
</script>
<!-- Script by hscripts.com -->

HTML Code

<!-- Script by hscripts.com -->
<form name=df style='margin:0px;'>
<input type=password length=20 name='pwd' onkeyup='CheckPasswordStrength(this.value);'>
<div id='pwd_strength'></div>
</form>
<div style="padding-right:850px; font-size: 10px;color: #dadada;" id="dumdiv" align=center>
<a href="http://www.hscripts.com" id="dum" style="text-decoration:none;color: #dadada;">©h</a></div>
<!-- Script by hscripts.com -->

Release Date -
Get free version without ©copyright link for just 5

For customization of this script or any script development, contact us at support@hscripts.com

Usage

a) Execute the code by just copying and pasting it.
b) Use this simplified password strength meter script on your web page.

License

- The javascript (misspelled as java script) is given under GPL License
- i.e. Free use for those who use the codes as it is.
- Free, if your modification does not remove our copyright information and links.
- Click Here for detailed license information.
- You can purchase the script if your requirements does not meet our GPL License terms.

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