QR codes have become increasingly popular over the years due to their ability to store a large amount of information in a small space. They are widely used for various purposes, such as tracking inventory, sharing contact information, and making payments. However, creating custom QR codes tailored to specific needs and branding can be challenging.
This tutorial will show you how to build a custom QR code generator using qrcode.js and JavaScript. qrcode.js is a JavaScript library that allows you to generate QR codes quickly, while JavaScript is a versatile programming language that can be used to build web applications.
By the end of this tutorial, you will have a custom QR code generator that allows you to generate QR codes with customizations such as logos, colors, and background images. This will enable you to create QR codes that are not only functional but also visually appealing and in line with your brand's image.
what is qrcode.js?
qrcode.js is a JavaScript library that makes it easy to generate QR codes. Before we can use qrcode.js to create our custom QR code generator, we need to install and set it up. There are a few ways to use it such as downloading local file, CDN link, and NPM. You can check its GitHub documentation here.
In this project, as you can see in the above image we have five buttons for generating different types of QR codes. We can create QR for any text or paragraph, URL, E-mail, Phone, or SMS. After filling in all the fields the QR will be generated. After generating QR we can download it.
1 - Setting up the project
- Create a new HTML file and name it index.html.
- Within the HTML file, create a basic structure by adding the <!DOCTYPE html> declaration and the <html> tags.
- Within the <html> tags, create the <head> and <body> tags.
- In the <head> tag, add the necessary metadata such as the title and any external stylesheets or scripts.
- Within the <body> tag, create a container for the QR Code Generator using the <div> tag.
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2 - Code of HTML, CSS, and JavaScript Files
Here's the good news: you don't have to write all the code of this project from scratch! I have created a GitHub repository that contains all the HTML, CSS, and JavaScript code needed to build the app. You can check it out and use it as a starting point for your own project.
Initially, the preview will not run you'll have to click on the RUN PEN button then the program will run, and then you'll be able to check the preview.
You can make changes in this after creating this program you can change the colors and background colors. You don't need to use only this design. You can create a better version of this by modifying it.
Hurray! now you've created a QR Code Generator. You can download files by clicking on the download button after downloading file if you are facing any kind of problem feel free to ask me in the comment section and you can also contact me via e-mail. Thanks for giving your precious time for reading this blog. Here is the download button:-