Skip to main content

Random Captcha Generator

 How to generate random captcha || JAVASCRIPT techinc


Here, you will going to teach how to generate random captcha by javascript


#CODE:

<!DOCTYPE html>

    <html>

        <head>

            <title></title>

        </head>

        <body>

            <canvas width=150 height=70 style="border:1px solid black;"></canvas><br>

            <button style="width:150px;

            height:40px;

            color: red;

            -webkit-tap-highlight-color:rgba(0,0,0,0);" onclick="generateCaptcha()">Generate Captcha</button>

            <style type="text/css">

                body{

                    text-align:center;

                    background-color:#00FA9A;                            

                }

                canvas{

                    background:white;

                }

            </style>

            <script type="text/javascript">

let canvas = document.querySelector("canvas");

let ctxt = canvas.getContext("2d")

function generateCaptcha(){

let captcha = Math.floor(Math.random()*8999+1000);

captcha = captcha.toString();

ctxt.beginPath();

ctxt.clearRect(-150,-70,320,150)

let syms = [];

let hex = "12345";

for(let i=0;i<2100;i++){

        ctxt.fillStyle = "#"+hex[Math.floor(Math.random()*hex.length)]+hex[Math.floor(Math.random()*hex.length)]+hex[Math.floor(Math.random()*hex.length)]+hex[Math.floor(Math.random()*hex.length)]+hex[Math.floor(Math.random()*hex.length)]+hex[Math.floor(Math.random()*hex.length)];

        ctxt.fillRect(Math.floor(Math.random()*150),Math.floor(Math.random()*70),1,1);

}

ctxt.fillStyle = "black";

for(let i=0;i<4;i++){

    syms.push(document.createElement("canvas"));

    syms[i].width = 130;

    syms[i].height = 130;

    ctx = syms[i].getContext("2d");

    ctx.rotate(Math.floor(Math.random()*35-15) * Math.PI / 180)

    ctx.fillStyle = "#"+hex[Math.floor(Math.random()*hex.length)]+hex[Math.floor(Math.random()*hex.length)]+hex[Math.floor(Math.random()*hex.length)]+hex[Math.floor(Math.random()*hex.length)]+hex[Math.floor(Math.random()*hex.length)]+hex[Math.floor(Math.random()*hex.length)];

    let font = Math.floor(Math.random()*35+85);

    ctx.font = font+"px Arial";

    ctx.fillText(captcha[i],40,font-10);

//ctxt.drawImage(syms[i],30,30,15+((i*40)-font)/2+30,Math.floor(Math.random()*25+35));

    ctxt.drawImage(syms[i],20*i+25,15,30+Math.floor(Math.random()*15-5),30+Math.floor(Math.random()*15-5));

}}

generateCaptcha();

            </script>

        </body>

</html>

#OUTPUT:

                                







Labels:

Comments

Post a Comment

The Most Populer

SideBar PLUS Icon with animation

SideBar PLUS Icon with Animation || POP UP icon Box || Icon Interaction in HTML                      Here is the best code for pop up icon box with the animation effect. These icons will be use in the many website for users attraction. Do the code now..! #CODE : --     <!DOCTYPE html> <html>     <head>         <title>Page Title</title>         <style type="text/css">             * {     margin: 0;     padding: 0;     box-sizing: border-box; } body {     display: flex;     justify-content: center;     align-items: center;     min-height: 100vh;     --light-color: #f8f9fd;     background: #FF6347; } .container {     position: relative;     display: flex;     flex-wrap: wrap; ...
Post a Comment
Read more

my profile code by html || shutter animation with hover effect of html-css

                                              My Profile Viewer #CODE :       <!-- Created By Aziz Sobirov --> <!DOCTYPE html> <html>     <head>     <meta name="viewport" content="width=device-width, initial-scale=1" />      <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>        <link href="https://fonts.googleapis.com/css?family=Montserrat&display=swap" rel="stylesheet"> <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css">         <title>Img hover</title>         <style type="text/css">           *{     margin:0;     padding:0;    ...
Post a Comment
Read more

create a NOTE app by HTML-JS | Design for note app | App challenge

 CREATING A STICKY NOTE APP WITH HTML AND JS WITH EXPLAIN IN HINDI Hello There..! Here is the sticky note app code of html . 👇👇👇👇👇👇 <!DOCTYPE html> <html>     <head>         <title>Clock + to-do app</title>         <script src="https://code.jquery.com/jquery-3.1.1.js"></script>         <script type="text/javascript">           function app(){ var today = new Date(); var date = today.getDate(); var montharr = ["January","February","March","April","May","June","July","August","September","October","November","December"]; var month = montharr[today.getMonth()]; var year = today.getFullYear(); $("#date").text(date + " " + month + "," + " " + year); var h = today.getHours(); var m = today.getMinutes(); var s = today.getSeconds(); var ampm = ""; if(h...
Post a Comment
Read more