QR Code Generator Using JavaScript & CSS (Free Code)

In this article, you will learn how to create a QR code generator using JavaScript.
If you know basic JavaScript, you can easily create a simple QR code generator Javascript. You can follow our other site Tech Virtual to create more other types of JavaScript QR Code Generator.

QR code is a type of matrix barcode that is currently used in almost all digital payments and products. In fact, it is a machine-readable optical label that contains some special information about the product.

QR Code Generator Using JavaScript

I have shared many more types of JavaScript projects before. This JavaScript QR code generator is fully operational.

JavaScript QR Code Generator

There are many such QRcode js examples on the internet. But here I have shared the complete tutorial and tried to explain to you step-by-step how to create a QR code generator using JavaScript.

This QR code generator JavaScript has been created in a very simple way. Here you can create a matrix barcode of any text or link.

If you do not understand what I am saying and would like to get a live demo of this project then use the demo below.

See the Pen
JavaScript QR Code Generator
by Shantanu Jana (@shantanu-jana)
on CodePen.

Hopefully, the preview above has helped you to understand how this QR code generator JavaScript works.

It is fully functional which means it will work perfectly when you scan it using QR scanner.

Many people think that it is very difficult to create this kind of pure javascript QR code generator. In fact, it is not. You can easily create if you know basic HTML CSS and javascript.

How to make a QR Code generator in JavaScript

First I added all the information using HTML. Then designed a QR Code Generator using JavaScript. JavaScript and qrcode.js CDN are used last.

There is a place input in which you can input any text or link. Then there is a small display in which the QR Code can be seen.

Now if you want to create this QR code generator javascript then follow the tutorial below.

Step 1: Basic structure of QR code Generator (more…)

Continue ReadingQR Code Generator Using JavaScript & CSS (Free Code)

Image to PDF Converter using JavaScript & CSS

display: block;
margin-block-start: 1em;
margin-block-end: 1em;
margin-inline-start: 0px;
margin-inline-end: 0px;
word-wrap: break-word;

line-height: 2em;}

h3{text-align: left;
font-family: Open Sans,Arial,sans-serif;
line-height: 1.7em;
color:black;
color:#333131;
font-weight: 520;

-webkit-font-smoothing: antialiased;
}

h2{text-align: left;
font-family: Open Sans,Arial,sans-serif;
line-height: 1.7em;
color:black;

font-weight: 620;
-webkit-font-smoothing: antialiased;
}

.class {
background:#edf0f2;
font-family: Consolas,Monaco,Lucida Console,monospace;
line-height: 1.65;
word-wrap: break-word;
border-radius: 5px;
color:#001d8f;
font-size:17.1px;
padding-left:10px;
white-space: pre-wrap;}

button.last-btn{
padding:14px 29px;
font-size:17px;
background-color:#0e87f0;
border-radius:6px;
color:white;
font-family: Open Sans,Arial,sans-serif;
border:none;
margin-left:35%;

}

@media only screen and (max-width: 400px) {
button.last-btn{
margin-left:0px;
margin-right:0px;
}
}
@media only screen and (max-width: 300px) {
button.last-btn{
margin-left:0px;
margin-right:0px;
}
}
@media only screen and (max-width: 600px) {
button.last-btn{
margin-left:0px;
margin-right:0px;
}
}
@media only screen and (max-width: 800px) {
button.last-btn{
margin-left:0px;
margin-right:0px;
}
}

@media only screen and (max-width: 400px) {
.copyButton {
width: 45%;
}

Image to PDF Converter using JavaScript

This is a simple JavaScript project that can convert images to PDF files. Many times we want to convert a file to a PDF. In that case, you can use some kind of JavaScript Image to PDF Converter

Image to pdf converter using javascript function that converts the images format to the pdf format for that we will be using the api for converting image to pdf file.

This design is a simple project where you can select any one image and convert it to a PDF file with just one click. However, no file other than email can be converted to PDF here. HTML, CSS, and JavaScript are used here. I have added different elements using HTML and created an input box to select the image. 

We get different types of input from HTML. One of them is the file. File input will help you to select any file from your device. Here I used accept = “. Png, .jpg, .jpeg” to select only the image in the input. As a result, only certain images can be selected here.

Image to PDF Converter JavaScript

If you have difficulty understanding what I am saying, you can watch the demo below. Here you will find a live preview of this project.

See the Pen
Untitled
by Shantanu Jana (@shantanu-jana)
on CodePen.

 

As you can see, a box has been created on a gradient background. First of all this box has a small display. You can see the selected image in that box. This will let you know which image you are converting to PDF. 

However, the problem here is that you cannot select multiple images at once. A PDF file will be created by an image.

How to Convert Image to pdf using JavaScript

This Image to PDF Converter JavaScript project has two buttons. One button to select the image, the other to convert and download to a PDF file. 

When you click on the upload or select button, you can select any image from the device. When you click on the download button, your image will be converted to PDF and downloaded. It is very easy to build with very little HTML, CSS, and JavaScript.

Step 1: Basic structure of PDF Converter

The basic structure of the project has been created using the following HTML and CSS. First, a gradient background color has been added to the webpage. Then the box is created.

<div class=”container”>
 
</div>
*,
*:after,
*:before{
 -webkit-box-sizing: border-box;
 -moz-box-sizing: border-box;
 -ms-box-sizing: border-box;
 box-sizing: border-box;
}
 
body{
 font-family: arial;
 font-size: 16px;
 margin: 0;
 background: linear-gradient(133deg, #4abeb2, #3c57d2);
 color: #000;
 display: flex;
 align-items: center;
 justify-content: center;
 min-height: 100vh;
}
 
.container{
  background: white;
  width: 450px;
  padding: 30px;
  border-radius: 5px;
}
Basic structure of PDF Converter

Step 2: Image preview box

Now an area has been created in which to view the image. This means that the preview of the image that you will select to convert to PDF can be seen here. This box uses max-width: 400px and min-height: 200px.

<img id=”showImg” src=”images/img.png”>
#showImg{
 display: block;
 margin: 0 auto;
 max-width: 400px;
 min-height: 200px;
 background: #174353;
 border-radius: 5px;
}
Image preview box

Step 3: Button of Image to PDF Converter

(more…)

Continue ReadingImage to PDF Converter using JavaScript & CSS