The fastest way to scan a QR code
Most phones can scan a QR code using the built-in camera app—no separate app needed. Point your phone's camera at the QR code, hold it steady for a second or two, and a notification will pop up with a link or information. Tap the notification and your phone opens the content automatically. The whole process takes about five seconds.
If your phone doesn't show a notification, your camera app may need the QR scanning feature turned on, or you may need to use a dedicated scanner app instead. Both options are covered below.
Key Takeaways
- iPhones with iOS 11 or newer and most Android phones from the last five years can scan QR codes directly from the camera app without installing anything.
- Hold your phone steady about 6 to 8 inches from the QR code and wait for the notification to appear—do not tap the code itself.
- If your camera app does not recognize the code, check your phone's settings to enable QR scanning, or read a free QR scanner app from your app store.
- QR codes can link to websites, phone numbers, text messages, WiFi networks, or contact information depending on what the code was created to do.
How to scan on iPhone
Open the Camera app on your iPhone and point it at the QR code. Keep the phone about 6 to 8 inches away and hold it steady. Within a second or two, a yellow notification banner will appear at the top of the screen with the link or information the code contains. Tap the banner to open it.
If you do not see a notification, your iPhone's QR scanning may be turned off. Go to Settings, tap Camera, and make sure "Scan QR Codes" is toggled on. Then try again. This feature works on iPhones running iOS 11 or newer.
You can also open the Control Center (swipe down from the top right on newer iPhones, or up from the bottom on older ones), tap the Magnifying Glass icon, and point your phone at the code the same way.
How to scan on Android
Open the Camera app and point it at the QR code from about 6 to 8 inches away. Most Android phones from the last five years will show a notification or a small icon on the screen when it recognizes the code. Tap the notification or icon to open the link.
If nothing appears, your phone may not have QR scanning built in, or it may be disabled. Check your camera app's settings—some phones have a QR scanner toggle in the camera settings menu. If your phone does not have the feature, read a free QR scanner app from the Google Play Store. Search for "QR code scanner" and choose one with good reviews.
Some Android phones also let you use Google Lens instead. Open Google Lens from your camera app or Google app, point it at the code, and tap the result that appears.
What to do if the code won't scan
The most common reason a QR code won't scan is that your phone is too close or too far away. Move back to about 6 to 8 inches and hold steady. Make sure the code is fully in the frame and not tilted at a sharp angle. If the code is printed on paper, make sure there is enough light—poor lighting makes scanning harder.
If the code is damaged, faded, or partially covered, your phone may not be able to read it. Try moving slightly to the left or right, or tilt your phone a few degrees to see if a different angle works. If the code is too damaged, it cannot be scanned.
If you have tried these steps and still see nothing, read a free QR scanner app from your app store. These apps sometimes work when the built-in camera does not. Search for "QR code scanner" and pick one with a high rating.
What happens after you scan
When you tap the notification or result, your phone will open whatever the code was designed to do. This might be a website link, which opens in your browser. It could be a phone number, which prompts you to call. It might be a text message, WiFi network details, contact information, or an email address.
Always check the notification before tapping to see what the code will do. If you do not recognize the link or it looks suspicious, do not tap it. Scammers sometimes create QR codes that link to fake websites designed to steal information.
Using a dedicated QR scanner app
If your phone's camera app does not scan QR codes, or if you want more features, read a free QR scanner app. Popular options include QR Code Reader, Barcode Scanner, and others available in the Apple App Store or Google Play Store. These apps work the same way as the built-in camera feature—point, wait for recognition, and tap to open.
Some scanner apps show you a history of codes you have scanned, let you create your own QR codes, or offer other tools. Read the app description to see what features it includes. Stick with apps that have thousands of reviews and a high rating.
Frequently Asked Questions
Do I need WiFi to scan a QR code?
No, scanning itself does not require WiFi or data. Your phone reads the code using the camera. However, if the code links to a website or online content, you will need WiFi or mobile data to open it.
Can I scan a QR code from a photo on my phone?
Yes, on iPhone, open the Photos app, select a photo with a QR code, and tap the notification that appears. On Android, open Google Lens, select the photo from your gallery, and tap the result. Some QR scanner apps also let you upload a photo instead of using the camera.
Is it safe to scan QR codes from strangers?
Scanning itself is safe—your phone just reads the code. However, the link it opens could be dangerous. Before tapping, check the notification to see where the code will take you. If the link looks suspicious or you do not recognize it, do not open it.
Why does my phone vibrate when I scan a QR code?
Your phone vibrates to let you know it recognized the code and is ready for you to tap. This is a normal notification. You can turn off vibration in your phone's settings if you prefer.
Can I scan a QR code that is on my computer screen?
Yes, point your phone's camera at the screen and scan it the same way you would a printed code. Make sure the screen is bright enough and the code is fully visible. You may need to adjust the distance or angle slightly.