Understand QR Code Scanner How Does It Work Before You Regret (2022)

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If you are searching on google what is a QR code scanner how does it work? Then you are at the right place. QR code stands for quick response code. You can scan everything which you want with this code.  Android phones do not have a QR code app but you can download a QR code scanner app from the play store.

In this article I will tell you about QR code scanners how does it work? I will tell you about its uses, its advantages, how to use it, and so on so please read this article completely to know about QR code scanners how does it work?

What is a QR code?

QR codes have the capacity to store a lot of data. Users can get information about anything with this QR code. Due to this reason, it is called a quick response code.

QR code is simply a type of barcode that you can read with any digital device. QR code stores information or data as a series of pixels in a square-shaped grid. You can track information about products with its help. Japanese company Denso wave invented the QR code system in 1994.

During manufacturing to track the vehicles and parts they need an accurate way. So, for this reason, they introduced a QR code system in the market. All the standard codes can be read in only one direction, top to bottom. It means that standard codes can store a very small amount of data. But QR codes can be read in two directions.

They can store a lot of data. QR code technology is very popular and everyone searches on google about QR Code Scanner How Does It Work?

QR codes can be used to:

The data which are stored in QR codes may be website URLs, phone numbers, or up to 4000 plus characters of text. They can be used to:

  • QR codes link directly to download your favorite app from the apple store or play store.
  • Qr codes can also be used to authenticate online accounts and verify login information.
  • They can also be used to send or receive payments
  • They can also be used in marketing campaign
  • They can also be used within video games console to share avatar information

Parts of QR code:

The most important parts of QR codes are the data module, position marker, and quiet zone:

Data Module:

The data module is the standard unit of QR code. Against a white background, it is a black square set. The contrasts and color may be different. When creating a QR code black on white is the most optimal.

Position Maker:

There are three position makers on every QR code. Consisting of an outer and inner eye, they allow all scanners and cameras to quickly and accurately locate the data module and the scanning direction.

Quiet Zone:

On all the sides of the data module matrix, it is the blank area that contains all the position makers and data modules. A quiet zone allows readers and scanners to optically place where the QR code begins or ends.

QR Code Scanner How Does It Work?

Many modern phones have built-in QR scanners, which are often built-in cameras. Qr scanners are used to scan QR codes. Apple iPad and some tablets have QR readers and built-in cameras.

If you have an older phone and you want to scan QR codes then you can install the third-party app from the google play store to scan the QR codes. If you want to scan the QR code then:

  • First of all, open the QR reader app or open the camera of your phone
  • Now point it on the QR code. From any angle, you should point your camera and still receive necessary or important information.
  • When you will do this the data will instantly show on your screen. If the QR codes contain contact information then your phone can download these in no time.

This is  QR Code Scanner How Does It Work?

Are QR codes safe?

In the QR codes, attackers can embed the malicious URLs that contain custom malware that can take out data from mobile devices when scanned. Did you know that it is also possible to embed malicious URLs in the QR codes that direct to phishing sites? It is difficult to read QR codes for humans so attackers can easily alter a QR code without being detected.

Many people know that QR codes can open URLs but they are less aware of other actions that QR codes can initiate on their devices. In general, mobile devices are less secure than laptops and computers and many people scan QR code with the help of mobile phone devices so the risk chances increases. So the simple answer is that QR codes are not safe.

Static vs Dynamic Qr Codes:

A static QR code contains information that you can not modify or change once in your life. The main advantage of static QR codes is that they don’t expire. Once the content is published your work is done. If you want to store more important data like wifi passwords, employee id numbers, and so on then using static QR codes is best for you. But you can not update data in static QR codes.

On the other side, dynamic QR codes allow you to update your data as many times as you want.  In dynamics QR codes information is not inbuilt into codes themselves. They can redirect users to specific URLs and these URLs can be changed when you want.

The main advantage of dynamic QR codes is the ability to gather scanning metrics. You can not access the personal information of users, you can see the location, device, and time used for each scan. As a marketer, I think that these metrics are urgent to measure camping effectiveness.

Advantages of QR codes for marketing:

QR codes have many advantages for marketing. The main four advantages are given below:

  • Qr codes can help you to stand out from the crowd
  • Qr codes let you target consumers on the go
  • Qr codes make real-life interactive like the web
  • QR codes are very easy to use and setup

After reading this article I hope you will never search again on google about QR Code Scanner How Does It Work?


So QR codes play an important role in our lives. You can scan QR codes to get data. Let me tell now in the comments section below that what type of QR code you use dynamic or static? If you found this article helpful for you please share this article with your friends and family members. I hope you got your answer QR code scanner how does it work? Thanks for reading.


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