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Quick Response code, often abbreviated as QR code, is a machine-readable code consisting of an array of black and white squares used for storing data, URLs, or other information which can be read by the camera on a smartphone or unique QR code readers. Usually, QR codes are used in advertising, which will take the visitor to a particular URL upon scanning the code through their smartphones.

QR codes were first designed for the automotive industry to track vehicles during manufacture by Denso Wave in 1994 but have found its use in various industries mainly because of its high-speed recognition and capability to score a great deal of information. Earlier bar codes were prominent, but they could only contain 20 alphanumeric characters, which are not sufficient for today’s use.

A QR code is an arrangement of black squares on a square grid with a white background that can be read by any imaging device, including your smartphone’s camera. It is processed using Reed–Solomon error correction until the image can be appropriately interpreted.

What is error correction in QR barcode Generator?

One of the essential features of using a QR code in place of bar codes is its ability to function correctly, even if part of the QR code obscured, removed, or damaged. It is possible due to Reed- Solomon’s error correction algorithm, which in simple terms, is a way to add backup data to QR code mathematically. Four correction levels used for creating or Designing the QR codes. Let’s discuss them in detail:

  • Level L – up to 7% damage
  • Level M – up to 15% damage
  • Level Q – up to 25% damage
  • Level H – up to 30% damage

The more data you put in while designing the code with a QR barcode Generator, the more rows and columns of the squares will be introduced. If you have a higher error correction level, it means that it will occupy more rows intended for storage and some more for the backup code words. In simple terms, a QR code becomes denser from Level L to Level H as the error correction increases. The less error correction, the less dense is the QR code, and less is the printing size required. But higher the correction level, the more serious damage the QR code can sustain before it becomes completely unreadable by scanners.

Level L and M are best suited for marketing use, whereas Level Q and H are better suited for industrial environments where the QR code is prone to get damaged easily.

How to Designing QR with QR barcode Generator easily?

If you are looking to design the code with QR barcode Generator to print on your brochures or for displaying on your websites, then you will be happy to know that we have just the right tool named “QR barcode Generator” in our arsenal for you. Here’s how you can use it:

  • Enter the piece of text or the URL of the site you want to design the code with it.
  • Select the image size of your QR code. The ideal image size should be 200x200 pixels, but that again depends on your needs.
  • Select the error correction level. Check above for more information on error correction in QR code.
  • Fill in the simple captcha. It is in place to keep bots and scripts from crashing our servers with too many requests.
  • Click on the “Generate” button for the tool to download the code Design from QR barcode Generator.

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