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From this article, you will learn what a QR code is, how to decode a QR code and what a QR code is for.

Recently, at my work, I began to notice that they send us mock-ups of drawings for making molds, with the presence of some kind of crocodile in them. As an example, you can pay attention to the thumbnail to the article.

Trying to find out from colleagues at work what it is all about, no one gave an intelligible answer.

Then, I decided to find out on my own what this strange square of incomprehensible appearance was.

After spending a whole day on the Internet, I dug up a whole bunch of interesting information regarding this strange drawing.

It turns out that this strange subject is called - " Barcode»(QR code). This is a kind of barcode, but of a different design. In order not to confuse you, I will explain in order. So.

What is a QR code (Barcode).

QR code ( quick response - quick response) is a special two-dimensional, matrix barcode developed in Japan by Denso-Wave.

It seems that the Japanese at one time were not satisfied with the usual barcode that we used to see on various products in the store, and they decided to create a more functional data system, such as the Barcode (QR code).

Why do you need a QR code (Barcode).

A barcode (QR code) is similar to a barcode in its principle of operation, but there is much more potential hidden in it than in a regular barcode.

Inside this code, you can hide a bunch of different information. To be more precise, there, you can encode a link to your website, your e-mail address, any printed information, and indeed, everything that is enough for imagination.

You probably do not understand why I am telling this, but I assure you, read on and everything will become clear to you.

How it all works, I'll tell you briefly.

For example, I or you encrypt the address of your site into this barcode and make a picture out of it. We place this picture wherever our heart desires, for example, on a T-shirt.

But the point is not even where to place this barcode, but in the fact that it can be considered a special scanner program that is installed on almost all mobile phones, smartphones and iPads. After scanning, the program will show what is encrypted in the QR code. In our case, this is a link that you can click on and be transferred to an encrypted resource.

I hope it becomes a little clearer to you the purpose of this code. If not, read on.

Now, let's figure out how to create a qr code (Barcode).

How to create a qr code (Barcode).

To create a qr code, special online barcode generators are used.

One of these is qrcoder.ru.

To create the barcode you need, go to the above address and get to a special generator form:

Then, you must decide what you need to encrypt in the qr code. For each encryption, the form will look different. In the top screenshot, it is set to enter plain text.

Having run through the tabs above the form, you can enter the necessary data yourself. Then, specify the size of the barcode and press the button - Create code:

After that, in the next window, the generated qr code will appear, with special links, for inserting it in the place you need:

Also, you can simply drag the image with the mouse onto the desktop, which will be the best solution.

On this resource, you can download the scanner program by selecting the appropriate software suitable for your phone.

To do this, in the upper right corner, you need to go to the tab - Programs for recognition:

In the window that opens, you need to select the system that your mobile device supports. Then, you will be transferred to the site for downloading programs and choosing the version of your phone.

I think it will not be difficult to figure it out, everything is in Russian. The only thing you need to do to download is to register at the link. Unfortunately, everything is in English, but the registration form is standard and it will not be difficult to figure it out.

Also, a qr code can be made multi-colored and an inscription can be created in the middle. There are dedicated resources for this. You can go to one of these resources by clicking on the link.

Everything is simple here. Choose the color of the elements, size, inscription and enter information for encoding. Then, generate a barcode:

How to decrypt, read or read a QR code (barcode).

First, let's look at how to decrypt a QR code on a computer.

After installing it on your computer, run this program and see the following window:

It looks like a kind of camera. If this program is run on a computer with a WEB camera, it automatically turns it on and switches to shooting mode. You just need to bring the barcode to the camera and, by clicking on the small icon (similar to target acquisition), in the lower left corner, take a picture. After that, you will see what is encrypted there.

To read the QR code from the monitor screen, you need to switch to the photographing mode by pressing the same button. Then, move the window over the code so that it is completely captured, and click on the round button below it:

For ease of use, you can simply drag the picture with the mouse into the program window.

Your attention will open the information that was encrypted in the QR code. In my case, this is a link to a blog, clicking on which with the mouse, I will get to my resource:

Also, in this program, it is possible to create your own barcodes. To do this, at the bottom, click the second icon from the left that looks like a barcode and in the window that opens, specify the parameters of the generated code. After that, save the picture by clicking on the floppy disk icon:

How to read, read or decode a QR code (Barcode) on a mobile device.

To decrypt the QR code (Barcode) using a mobile device, you need to download the special scanner program mentioned above. How the process of reading the QR code takes place, see the video:

I hope now you understand the process of creating and decoding a QR code.

Further, I would like to show you a number of possibilities for using this method of encrypting information. Especially for you, I have prepared several videos that show in great detail many ways to use the QR code (Barcode). Watch to the end, it's very interesting:

News release, which presents some of the features of the barcode:

I think, now, each of you will be able to find the use of this interesting crocodile, called QR code (Barcode).

In conclusion, I will say one thing. These codes don't like long links. Therefore, if you encrypt long addresses, pages of your blogs or websites, then it is better to make links short.

Sincerely, Denis Chernikov!