How to scan a QR code on your phone or computer

You can scan a QR code using the camera on your smartphone, tablet, or computer — however, you may need to download an app.

How to add a new contact to WhatsApp using the Chats tab or a QR code

You can add new contacts to WhatsApp manually from the Chats tab or you can scan someone's QR code within the app.

You Can Now Easily Verify Your Android Contacts' Identities

Android System Key Verifier has actually been available as a separate app before. Now, right from the Messages app, you and a ...
Android Police

Android's built-in QR scanner just got a playful redesign with new functionality

Taylor worked with AP from 2018 to 2025, most recently as Google Editor. Android's built-in QR scanner has gotten a significant visual update. As reported by 9to5Google, the QR code scanner is getting ...

How to connect your Android phone with Windows PC to get calls and messages notifications

Microsoft offers a solution to manage your phone from your computer. The Phone Link application connects your Android device ...
9to5google

Google rolls out redesign of Android’s QR code scanner

As announced in May, Google has given its default QR code scanner on Android an appreciable redesign. Upon launch (via the Quick Settings Tile or lockscreen shortcut), there’s a nice animation of the ...
GIGAZINE

'QR is cool' is a website that shows how excellent QR code error correction is, and QR codes can maintain their original information even if they are significantly altered.

QR codes have four error correction capabilities: Level L, Level M, Level Q, and Level H. Level L allows the original information to be preserved even if a maximum of ...