How to Scan a QR Code on iPhone and Android

Scanning a QR code is one of the simplest things you can do with your smartphone, and you almost certainly do not need to download a special app to do it. Modern iPhones and Android phones have built-in QR code scanning support right in the camera app. In this guide, we will walk you through exactly how to scan a QR code on any device, plus troubleshooting tips for when things do not work as expected.

How to Scan a QR Code on iPhone

Every iPhone running iOS 11 or later can scan QR codes directly through the built-in Camera app. No additional apps or settings are required for most users.

Step-by-Step Instructions

Open the Camera app on your iPhone.
Point your camera at the QR code so that the entire code is visible in the frame.
Hold your phone steady for a moment. The camera will automatically recognize the QR code.
A notification banner will appear at the top or bottom of the screen showing the QR code's content (usually a URL).
Tap the notification banner to open the link or take the appropriate action.

That is all there is to it. There is no button to press, no special mode to activate, and no app to download.

Using the Code Scanner in Control Center

Apple also provides a dedicated Code Scanner tool, as documented in Apple Support, that you can add to your Control Center for faster access.

Go to Settings > Control Center.
Find Code Scanner in the list and tap the plus icon to add it.
Now you can swipe down from the top-right corner of your screen (or swipe up from the bottom on older iPhones) to open Control Center.
Tap the Code Scanner icon to open a dedicated scanning interface.

The Code Scanner is slightly faster than the Camera app because it is optimized specifically for reading codes and will immediately open the result without requiring you to tap a notification.

Scanning from Photos on iPhone

If someone sends you a screenshot or image that contains a QR code, you can scan it without pointing your camera at another screen.

Open the image in the Photos app.
Tap and hold on the QR code in the image.
A menu will appear with options like "Open in Safari" or "Copy Link."
Tap the appropriate option to interact with the QR code content.

This feature works on iPhones running iOS 15 or later and uses Apple's Live Text technology to detect the QR code within the image.

How to Scan a QR Code on Android

Most Android phones running Android 9 or later can scan QR codes directly through the camera app, though the exact method varies slightly by manufacturer. Here are instructions for the most common Android devices.

Google Pixel and Stock Android

Open the Camera app.
Point your camera at the QR code.
A link or notification will automatically appear on screen.
Tap the link to open it.

On newer Pixel phones and Android versions, you can also use Google Lens directly from the camera app by tapping the Lens icon, then pointing at the QR code.

Samsung Galaxy

Open the Camera app.
Point your camera at the QR code.
A popup will appear showing the URL or content.
Tap the popup to open it.

If this does not work, make sure QR scanning is enabled: open Camera, tap the Settings gear icon, and toggle on Scan QR codes.

Other Android Phones

Most other Android manufacturers (Xiaomi, OnePlus, Huawei, etc.) include QR scanning in their camera apps. The process is the same: open the Camera, point at the code, and tap the popup.

If your camera app does not support QR scanning natively, use Google Lens, which is available on virtually all Android devices. Open the Google app, tap the Lens icon in the search bar, and point your camera at the QR code.

Troubleshooting: QR Code Not Scanning

If a QR code is not scanning, the problem is almost always related to the physical conditions rather than your phone. Here are the most common issues and how to fix them.

The Code Is Too Small or Too Far Away

Move your phone closer to the QR code so that the code fills a good portion of the camera frame. If the code is printed very small, you may need to get within a few inches. The camera needs enough detail to distinguish the individual squares in the pattern.

Poor Lighting

QR codes need adequate lighting to be scanned. If you are in a dimly lit environment, try using your phone's flashlight. On iPhone, the Code Scanner tool in Control Center has a built-in flashlight toggle. On Android, enable the flash from your camera settings.

The Code Is Damaged or Blurry

QR codes have error correction that allows them to work even when partially damaged, but there are limits. If the code is severely scratched, faded, or smeared, it may not scan. Try cleaning the surface if possible, or ask for a replacement code.

Glare or Reflections

If the QR code is printed on a glossy surface or displayed on a screen, glare can interfere with scanning. Adjust the angle of your phone or the light source to minimize reflections. Tilting your phone slightly to the side often helps.

The Camera Is Not Focusing

If your camera is having trouble focusing on the QR code, tap on the code in your camera app to force the focus. Make sure your camera lens is clean — a smudged lens is a surprisingly common cause of scanning problems.

Camera Permission Is Disabled

If your camera app cannot access the camera, check your permission settings. On iPhone, go to Settings > Privacy & Security > Camera. On Android, go to Settings > Apps > Camera > Permissions.

What Happens After You Scan a QR Code?

The action that happens after scanning depends on the type of data encoded in the QR code. Here is what to expect for the most common types:

URL: Your browser opens the linked web page
WiFi: Your phone prompts you to join the WiFi network
vCard: Your phone offers to save the contact information
Phone number: Your phone asks if you want to call the number
Email: Your email app opens with a pre-filled message
SMS: Your messaging app opens with a pre-filled text
Plain text: The text is displayed on your screen

For most use cases, scanning is completely automatic and takes less than a second. You can create your own QR codes for any of these types at QR Code Banana — it is completely free and takes just seconds.

Frequently Asked Questions

Do I need an app to scan QR codes?

No. Every modern iPhone (iOS 11+) and Android phone (Android 9+) can scan QR codes using the built-in camera app. No additional app is needed.

Why is my phone not scanning the QR code?

The most common causes are poor lighting, the phone being too far from the code, camera focus issues, or a dirty lens. Try moving closer, improving the lighting, and cleaning your lens. See the troubleshooting section above for more detailed solutions.

Can I scan a QR code from a screenshot?

Yes. On iPhone (iOS 15+), open the image in Photos and long-press the QR code. On Android, use Google Lens to scan QR codes from saved images.

Are QR codes safe to scan?

QR codes themselves are safe — they are just encoded data. However, a QR code could link to a malicious website, just like any link could. Your phone will show you the URL before you visit it, so check the domain name before tapping. Avoid scanning QR codes that look like they have been tampered with or placed over another code.

Can I scan a QR code from a computer screen?

Yes. Simply point your phone's camera at the QR code displayed on your computer monitor. You may need to adjust your screen brightness and angle to minimize glare.

For more answers, visit our FAQ page.

How to Create a QR Code: Complete Guide — Step-by-step guide to creating QR codes for any use case.
Do QR Codes Expire? — Everything you need to know about QR code expiration.

Start Scanning and Creating

Now that you know how to scan QR codes on any device, why not create your own? Visit QR Code Banana to generate free QR codes for URLs, WiFi, business cards, and more. No sign-up required.

How to Scan a QR Code on iPhone and Android