How to Read QR code using Javascript?

QR codes or Quick Response Codes are used in different industries in multiple ways. Because of their small size, high capacity to store data, and the ability to get scanned even being damaged, the QR codes have become ubiquitous now. They are used while making payments, CTA for landing pages, ordering food, and whatnot! While almost every other smartphone supports QR code scanning, you might look for a QR code scanning online to perform scanning on the web. Also, if you want to perform QR code using JavaScript, you'll have to search for a JavaScript barcode scanner or perform some coding. Don't worry, we've got you covered.

Reading QR code using Javascript: The Procedure

The first way to perform QR code scanning using JavaScript is by using HTML coding. You can add QR code reading in HTML5 using html5-qrcode. It simplifies QR Code reading for developers and abstracts camera usage and access on different browsers. This method is intended for developers who are familiar with HTML and JavaScript.

The second option is to go ahead with an off-the-shelf QR Code scanner online. It will let you scan a QR code using a live stream. Some may also let you upload image files. The features will be limited, and this option might not be very secure.

If you are not into programming but looking for a robust QR code scanner for the web, then it's best to go with a JavaScript QR code scanner SDK. Barcode Reader SDKs allow you to embed barcode scanning functionality to your web, mobile, and desktop apps using just a few lines of code. Hence, you don't have to struggle with the programming part. Unlike off-the-shelf solutions, the SDKs offer customization capabilities to handle different scenarios and powerful security features to keep your data safe.

Finding a QR Code Scanner Online: What Features to Consider?

While looking for a QR Code scanner online, you'll come across multiple options. Here are the features that you must consider.

• Easy to Use: Whether you choose an off-the-shelf solution or a QR code scanner SDK, it should be easy to use. You will not like to struggle while using the features of the solution. For the off-the-shelf solution, the interface must be user-friendly. When it comes to a QR code scanner SDK, you should be able to add barcode reading functionality using just a few lines of JavaScript code.

• Supports Multiple Formats: While you may find a QR code scanner online that supports live streams, you may not find one that supports scanning from images. Look for the one that supports both.

• Reads Tough QR Codes: An ordinary QR code scanner will fail to read incomplete, wrinkled, or tiny QR codes. Choose the one that can scan such QR codes without a hassle.

• High Speed: Speed is crucial for most applications. Leading QR code scanners can read more than 500 QR codes in a minute. Make sure you choose only the fastest ones.

• Good Security: An ordinary off-the-shelf QR code scanner may not provide good security to keep your data safe. Choosing a QR code scanner SDK from a trustworthy vendor will help solve the problem.

• Technical Support: Whether a feature is not working or you are having trouble while scanning, technical support becomes imperative. Look for a vendor that is known for its good technical support.

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