How QR Code Scanner Online work?
There are four methods to use QR Code Scanner Online:
| Method | Description |
|---|---|
| Scan from camera | Use your device’s camera to scan for the QR Code |
| Scan from image | Upload image to scan for the QR Code |
| Scan from clipboard | Paste the copied image to scan for the QR Code |
| Scan from URL | Use the image URL to scan for the QR Code |
How to use QR Code Scanner Online
1. Scan QR Code using camera
Select the Camera scanner method at the top of the page. You will need to allow the QR Scanner application to use the device’s camera.
If the device has multi-cameras, you can change the camera for scanning by selecting the device at the camera select box.
Select the camera scanner method at the top of the page. You will need to allow the QR Scanner application to use the device’s camera.
If the device has multi-cameras, you can change the camera for scanning by selecting the device at the camera select box.
Move the phone camera into the front of the QR image. The QR image will need to appear in the scan area. The QR Code scanner will automatically scan the code and show the result.
2. Scan QR Code using file upload
- Select the “Upload” method
- Click on “Select Image” button and select the QR Code image from your device
3. Scan QR Code from the copied image
- Select the “Paste” method
- Press short keys ctrl + v to paste the copied image
- You can also click on the “Paste” button to scan the copied image
- In case of click on “Paste” button, you will be ask for the “access clipboard permission”, feel free to allow it
4. Scan QR Code from the image URL
- Select the “Url” method
- Enter the url of the QR Code image into the text input
- Click on the “Scan QR Code” button to start scanning the QR Code content
Scan QR Code on computer or mobile device
The QR Code Scanner Online application can work both on a PC and a Mobile device. This is a web application so you will need a web browser, please use your favorite browser to scan your own QR code.
In order to use the “Camera” method, the QR Code Scanner Online application needs to access the device camera, so please ensure that it has the right permission (web browser will ask for permission when the “Camera” method is selected, let allow it).
With the “Paste” method, QR Code Scanner Online needs to access the clipboard data, please accept that permission when the browser asks.
Offline scanning the QR Code
The QR Code Scanner Online can work offline with three methods: Camera, Upload, and Paste. The “Url” method can’t work because it requires a network connection.
There is two way for the application to work offline:
- Open the QR Code Scanner Online application in chrome and keep the tab. Whenever you need to scan a QR Code, just open the tab and use the supported method.
- Install the QR Code Scanner Online as a standalone app to your mobile phone by clicking on the “Add to home screen” button. It will work as a normal andoid/ios application so you can use it whenever you want.
What is a QR code?
Widely used for controlling train tickets or movie reservations, the QR code is a smooth, fast and secure way to transmit information.
The QR code has established itself as precious sesame since its use in the context of the Covid-19 pandemic. QR code stands for “Quick response code”. It is a two-dimensional barcode, which makes it possible to store digital data.
It presents itself as a kind of complex checkerboard, consisting of small black squares on a white background. This form is not due to chance: it is inspired by the famous Japanese game, go. Indeed, the QR code was created by the Japanese engineer Masahiro Hara, in 1994. Originally, it was used in Toyota’s factories to track spare parts on production lines. it is therefore in Japan that it has become the most popular.
In other countries, the QR code became popular much later. It is only since the early 2010s that its use has become more daily. Today, it is possible to present your train ticket in this way, read the menus of some restaurants, share your Spotify playlist, or have your movie ticket validated.
Why QR Code is so popular?
Its format has many advantages. First of all, the QR code has the merit of being extremely easy to use. Not only available in digital format but also on a sheet of paper. Its use only requires a device with a camera without any additional actions.
According to the American site Gizmodo, the QR code can contain 100 times more information than a simple barcode. It, therefore, makes it possible to store all kinds of data. Another quality of the QR code is its inviolability. Thanks to its format, it is impossible to literally “hack” a QR code: it would then be necessary to alter the location of the small squares that constitute it. Technically, this is not feasible.
Find out more about QR Code: https://en.wikipedia.org/wiki/QR_code