Scanner un QR Code avec son smartphone

Solutions to scan a QR code on Android, iPhone or iPad (iOS)


If you are wondering how you can scan a “Quick Response” code, know that this operation is very simple. You just have to use your smartphone’s camera. However, depending on your device (smartphone on Android or iPhone / Android touchscreen tablet or iPad on iOS), the procedure may be a little different to read a QR Code.. We therefore explain in this article how to scan a QR code with your smartphone or tablet.

The smartphone can scan the QR Code and redirect you to a web page for example

Download a QR code reader application on Android

If your device is running on a system Android, you may need download a special QR code reader app available on Google Play Store. This will serve as QR code reader. It could be, for example, “QR code reader “Or”Barcode and QR scanner ».

Regardless of your choice, make sure that there is a large number of users and a correct rating for the QR Code app you choose to avoid security problems in particular.

Note also that these free applications for Android most often include advertisements. There are of course also paid QR code reader apps (so ad-free).

It is also possible that depending on your smartphone model, this option is already integrated. In this case, you don’t need an additional app. In addition, you can also use Google Lens from Google to read your QR code.

For an iOS device (iPhone or iPad): use the camera to read a QR code

In case you have an iPhone or iPad, know that it works on iOS and this functionality is automatically integrated. However, you must have version 11 of iOS to be able to use it. Otherwise, you will also need to download a QR code reader application from the Apple App Store.

For iPhones and iPads running iOS 11 or later, all you need to do is open your camera to crack the code.

Then make sure that it is clearly visible in the middle of the screen. It will be automatically read and you will be able to access all the information it contains.

An alternative to apps: use Mozilla Firefox on Android to scan a QR Code

If you do not know which Android application to choose to flash a QR code or if the advertising present in these applications bothers you, know that the Mozilla Firefox web browser is an excellent alternative to QR code applications for Android.

Mozilla Firefox for Android or iOS is a great privacy-conscious browser. It is a very good alternative to Google Chrome. It has a built-in QR code scanning feature via the camera of your smartphone or tablet. If you are using Firefox on Android, then you will no longer need a QR Code reader application.

Here’s how to use Firefox to read QR codes:

  1. Open Firefox browser
  2. Click in the address bar
  3. Press scan then use your camera to read the QR code.
Scan a QR code without an application with Mozilla Firefox
Scan a QR code without an application with Mozilla Firefox

I can’t flash a QR code. What do I need to do to be able to read it?

It is not excluded that you will be faced with some QR code reading problems. In this case, check some key parameters. The first is brightness. Your smartphone may not be able to distinguish all parts of the code due to low light. So move to a brighter place or use a light source to illuminate the code.

You should also be careful not to tilt your smartphone during the operation. He must be right in front of the code at all costs. Also remember to place it on a stable surface to prevent it from moving and leaving the field. For the code to be easy to read, it must be stationary in front of your screen for a few seconds.

While this can be a reflex, you should also avoid getting too close to the code. It must be fully visible to be decrypted. This may not be the case if you are too close to it. Do not forget either that by getting closer, you risk creating gray areas on the QR code, which slows down its reading.

By following all these little rules, you are sure to decode all the QR codes you will ever need.

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