The basic steps to scan a QR code

Most phones can scan a QR code using the built-in camera app — you do not need to download anything extra. Point your phone's camera at the QR code, hold it steady for a moment, and a notification will appear on your screen with a link or information. Tap the notification to open what the code contains.

If your phone does not automatically recognize the QR code, you can use the Google Lens app (on Android) or the Magnifying Glass app (on iPhone) to scan it instead. Both work the same way: open the app, point at the code, and tap what appears on screen.

Key Takeaways

  • iPhones with iOS 11 or newer and most Android phones 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 the built-in camera does not work, Google Lens (Android) or the Magnifying Glass (iPhone) will scan the code for you.
  • A QR code should only open a link or show text — if it asks for a password or payment information, do not proceed.

How to scan on iPhone

Open the Camera app and point it at the QR code. You should see a yellow notification banner appear at the top of your screen within a second or two. Tap that banner to open the link or information the code contains.

If nothing happens after a few seconds, make sure the code is fully in frame and well-lit. Codes that are torn, faded, or in shadow often will not scan. If the camera still does not recognize it, try opening the Magnifying Glass app instead — it is built into iOS and works the same way.

How to scan on Android

Open your Camera app and point it at the QR code. Most Android phones will show a notification or a small icon on screen when the code is recognized. Tap it to open the link or information.

If your camera app does not recognize the code, open Google Lens instead. You can usually find it by swiping left on your home screen, or by opening Google Search and tapping the Lens icon. Point at the QR code and tap the result that appears.

What happens when you scan

A QR code usually contains a web link, contact information, or WiFi details. When you scan it, your phone will show you what is inside — typically a notification asking if you want to open a website. Tap yes to proceed, or tap no to dismiss it.

Some QR codes contain plain text or a phone number instead of a link. Your phone will display this information on screen, and you can choose whether to call the number, copy the text, or do nothing.

Checking a QR code before you open it

Before you tap a notification to open a link from a QR code, look at the web address that appears. If it looks suspicious — for example, it says "bit.ly" or a shortened URL instead of the company name you expect — do not tap it. Scammers sometimes print fake QR codes that lead to phishing websites designed to steal passwords or payment information.

If you scanned a code in a public place like a parking lot, a poster, or a sticker on a business, be especially cautious. Criminals sometimes cover legitimate QR codes with fake ones. If the link does not match what you expected, close the notification and ask the business directly for the correct code.

Troubleshooting a code that will not scan

If your phone will not scan a QR code, try these steps in order. First, make sure the code is fully visible on your screen and not partially cut off. Second, move your phone closer or farther away — the sweet spot is usually 6 to 8 inches. Third, clean your camera lens with a soft cloth, because dust or smudges can block recognition.

If the code itself is damaged — torn, faded, or printed at an angle — your phone may not be able to read it. Try taking a screenshot of the code and scanning the screenshot instead, or ask the person or business who provided it for a clearer version. If you are trying to scan a printed code that is very old or worn, it may simply be unreadable.

Using QR codes safely

QR codes are convenient, but they can hide a malicious link. Never scan a code from an unknown source, and always check the web address before you tap it. If a QR code asks you to enter a password, payment information, or personal details after you open it, close the page immediately — legitimate codes do not ask for sensitive information right away.

If you receive a QR code in an email or text message from someone you do not know, do not scan it. Scammers use QR codes to direct people to fake login pages or websites that install malware. When in doubt, contact the organization directly using a phone number or website you know is real, rather than one provided by the code.

Frequently Asked Questions

Do I need an app to scan a QR code?

No. iPhones with iOS 11 or newer and most Android phones can scan QR codes using the built-in camera app. You only need a separate app like Google Lens if your camera app does not recognize the code.

Why is my phone not recognizing the QR code?

The code may be too far away, too close, or partially out of frame. Try moving your phone to 6 to 8 inches from the code and making sure it is fully visible. If the code is faded, torn, or in shadow, your phone may not be able to read it. Clean your camera lens and try again.

Can a QR code be dangerous?

Yes, if it links to a phishing website or malware. Always check the web address that appears before you tap it. If it looks suspicious or comes from an unknown source, do not open it. Legitimate codes from trusted sources are safe to scan.

What if the QR code opens a website I did not expect?

Close the page immediately. Do not enter any passwords or payment information. If you scanned a code in a public place, it may have been replaced with a fake one. Contact the business directly using a phone number you know is real to ask about the correct code.