Unraveling the Mysteries of QR Codes: Creation and Usage

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Ngày cập nhật gần nhất: 15/4/2026

Content

I. Generating QR Codes

II. Scanning QR Codes

Today, on advertising billboards and signage, we often encounter QR codes replacing long and hard-to-remember URLs. But what exactly is a QR code? How do we use it? Refer to the details below to find out.

QR Code, also known as Quick Response Code, is a code that can be scanned by a QR Code Reader. However, instead of using a dedicated scanner, you can use your smartphone to scan it through the device's camera.

The simplest way to create and use QR codes

Typically, QR codes serve to encode information shared by individuals. This could be in the form of URLs, SMS, content, addresses, phone numbers, and more. When users scan with their smartphones, the code disappears, replaced by the corresponding link, SMS, or phone number.

I. Generating QR Codes

To generate a QR code, simply visit Here

You can choose any information to encode. For example, URL, VCard, Text, Email, SMS, etc. Here, I've selected a URL with the address Mytour, then click Create QR Code to generate.

After downloading, I received the following QR code.

II. Scanning QR Codes

On your phone, open any QR code application installed. Then, point your phone's camera at the QR code to scan.

The result after scanning.

Here, Mytour has introduced you to what QR codes are and how to use them. Nowadays, QR codes are widely used, so it's a good idea to equip your smartphone with a QR code scanning app. Currently, Zalo also offers QR code scanning to install apps on computers. If interested, please refer to our article on scanning QR codes using Zalo on a computer that we've provided.

Refer to how to create QR codes efficiently with goo.gl, as introduced by Mytour in the previous article.

Read more: Shorten links and create QR codes with goo.gl

Frequently Asked Questions

What is a QR code and how is it used?

A QR code, or Quick Response Code, is a type of matrix barcode that can be scanned using a smartphone camera. It encodes information like URLs, SMS, or phone numbers, allowing users to quickly access content by scanning the code.

How can I generate my own QR code easily?

To generate your own QR code, visit a QR code generator website, select the information type you want to encode, such as a URL, and click 'Create QR Code.' After downloading, your QR code will be ready for use.

What steps do I follow to scan a QR code with my phone?

To scan a QR code, open any QR code scanning app on your phone, then point the camera at the QR code. The app will read the code and display the encoded information or link for you to access.

Can I use Zalo to scan QR codes on my computer?

Yes, Zalo can be used to scan QR codes on your computer. Simply follow the instructions in the relevant articles to install apps or access content directly from QR codes using Zalo.

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