Html5 Form with Captcha

Html5 Form with Captcha:
<script type="text/javascript">
//Created / Generates the captcha function
 function DrawCaptcha()
  var a = Math.ceil(Math.random() * 6)+ '';
  var b = Math.ceil(Math.random() * 6)+ '';
  var c = Math.ceil(Math.random() * 6)+ '';
  var d = Math.ceil(Math.random() * 6)+ '';
  var e = Math.ceil(Math.random() * 6)+ '';
  var f = Math.ceil(Math.random() * 6)+ '';
  var g = Math.ceil(Math.random() * 6)+ '';
  var code = a + ' ' + b + ' ' + ' ' + c + ' ' + d + ' ' + e + ' '+ f ;
  document.getElementById("txtCaptcha").value = code
 <script type="text/javascript">
// Remove the spaces from the entered and generated code
 function removeSpaces(string){
  return string.split(' ').join('');
<body onload="DrawCaptcha();">
 <form name="value">
 Name <input type="text" required pattern="^[a-zA-Z0-9]{4,12}$" value="" /> 
 Email:<input type="text" required pattern="^[a-zA-Z0-9-\_.]+@[a-zA-Z0-9-\_.]+\.[a-zA-Z0-9.]{2,5}$" value="" />   
 Phone:<input type="text" required pattern="^[0-9]{10,}$"  value="" /> 
 Comments:<textarea required pattern="^[a-zA-Z0-9]{15,}$"></textarea>   
 Enter Numbers As Shown:
<input type="text" id="txtCaptcha" style="background-image:url(images/cap.JPG); text-align:center; border:none; font-weight: bold; font-family:Modern" />
 <input type="button" id="btnrefresh" value="Refresh" onclick="DrawCaptcha();" />
 <input type="text"  oninput="check(this)" required  id="txtInput"/>  <input type="submit" value="SEND" onclick="ValidCaptcha();" /> 
// Validate the Entered input aganist the generated security code function
function check(input) {
  var cap =removeSpaces(document.getElementById('txtCaptcha').value);
if (input.value != cap ) {
  input.setCustomValidity("Error in code Please Check!");
  } else {
  // input is fine -- reset the error message

(click to view image larger)

Captcha Demo

It is working or not Please Let me know..
Please Leave your Comment..

9 thoughts on “Html5 Form with Captcha

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  2. Thank you! Thank you! I can’t say Thank you enough. I was having the hardest time finding a captcha code to integrate into my form. My only thing would be is there a way in the future for you to have a voice option for User Accessibility? That would make your captcha perfect!

  3. Hi Venugoapl this is working fine but please make a small change for the captcha as it can be changed by the user in the input text type is editable for captcha.

    make it ro read only then user can’t change like

    Thanks once again

  4. It’s 200% working & amazing,
    will u please send the code for Drop Down List(DDL) in which first DDL contains District list, Second DDL Contains State List according to first DDL and Third DDL Contains City list according to Second DDL………………Plz it’s urgent…

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