How to Scan a QR Code on a Laptop: 5 Ways, With or Without a Webcam

September 24, 2026

You can scan a QR code on your laptop using an online reader like ScanQR.org to upload an image or capture it via webcam.

Option 1: Scan from a Picture or Screenshot

Take a screenshot of the QR code (press Windows Key + Shift + S on PC or Command + Shift + 4 on Mac).
Open ScanQR.org in your web browser.
Paste the screenshot (Ctrl + V on PC or Cmd + V on Mac) or upload the saved image file.

Option 2: Scan Using Your Webcam (Windows or Mac)

Open ScanQR.org and click on the Webcam tab.
Allow your browser to use your camera.
Hold the physical QR code in front of your laptop camera until it reads the code.
Alternatively, Windows users can open the built-in Camera app, select the Barcode icon on the side, and point the laptop camera at the code.

The fastest way to scan a QR code on a laptop is to open the Camera app in Windows 11 and switch to Barcode mode, or, if the code is already on your screen, right click it in Chrome and choose Search with Google Lens. On a Mac, open a screenshot of the code in Preview and click the link it detects. If none of that works, point your phone at the laptop screen instead.

People searching this phrase usually mean one of two things, so this guide covers both:

You want your laptop to scan a code that is on a phone, a poster, a ticket or your own screen.
A website is showing a QR code on your laptop and you need to scan it with your phone (WhatsApp Web is the classic example).

Pick Your Situation:

Your situation	Best method
The code is already on your laptop screen, in an email or web page	Method 2 (Google Lens) or Method 3 (Mac Preview)
The code is on paper or a phone and you have a webcam	Method 1 (Windows Camera) or Method 4 (Chromebook)
A website wants you to scan a code to sign in	Method 5 (scan the laptop screen with your phone)
Your webcam is broken or missing	Method 2 or Method 5

Pro Tip

If a QR code is difficult to scan from a laptop screen, zoom the code to a larger size, increase screen brightness, reduce glare, and keep the phone or webcam steady. A clear, square image with all four corners visible is much easier for most scanners to recognise.

Method 1: Windows Camera app

Windows 11 can read QR codes through the built in Camera app on many builds. Availability depends on your version of Windows.

Open the Start menu, type Camera and open the app.
Look for a Barcode mode. It is usually a small icon on the side of the screen, often a barcode inside a circle.
Hold the QR code in front of the laptop camera. Keep the whole square in view and keep it steady.
When the code is read, a link or text appears. Click it to open it in your browser.

If you do not see Barcode mode: update Windows through Settings > Windows Update and check again. If it is still missing, use Method 2. The Camera app is also blocked if camera privacy is switched off, so check Settings > Privacy & security > Camera and make sure camera access is on.

Method 2: Google Lens in Chrome (no webcam needed)

This is the most useful method, because it works for any QR code already on your screen and it works on Windows, Mac and Chromebook.

Open the page, email or image that shows the QR code in Google Chrome.
Right click on the QR code. If you cannot right click the image, take a screenshot first (Windows key + Shift + S on Windows, or Shift + Command + 4 on a Mac).
Choose Search with Google Lens. The wording can also read Search images with Google, depending on your version.
Drag a box around the QR code.
The result panel shows the link or text hidden inside. Click Open or copy it.

No camera, no app install, and no upload to an unknown website. If you copy the link, our laptop typing guide explains the Ctrl + C and Ctrl + V shortcuts for pasting it wherever you need it.

Method 3: Mac (Preview, Photos and Safari)

Recent versions of macOS can recognise QR codes in images using Live Text.

Take a screenshot of the code with Shift + Command + 4 and drag over the code.
Open the saved screenshot from your Desktop in Preview. You can also add it to the Photos app.
Move the pointer over the QR code. If macOS recognises it, a small link icon or a highlighted area appears.
Click it to open the link.

If your version of macOS does not show it, use Method 2 in Chrome or Method 5 with your phone.

Method 4: Chromebook Camera app

Recent versions of ChromeOS include a scan mode in the Camera app.

Open the Camera app from the launcher.
Choose Scan mode.
Hold the QR code in front of the camera and wait for a link to appear.

If you do not see Scan mode, update ChromeOS or fall back to Method 2, since Chrome on a Chromebook supports Google Lens.

Method 5: Scan the laptop screen with your phone

When a website shows a QR code on your laptop, your phone is the scanner. This is how WhatsApp Web, and many other “log in with QR” screens, work.

To link WhatsApp Web:

On the laptop, open web.whatsapp.com. A QR code appears.
On your phone, open WhatsApp.
On iPhone, go to Settings and tap Linked devices. On Android, tap the three dots and choose Linked devices.
Tap Link a device and point the camera at the laptop screen.
Wait a moment for the chats to load.

To scan any other QR code on your laptop screen:

iPhone: open the normal Camera app and point it at the screen. Tap the banner that appears.
Android: open the Camera app or Google Lens and point it at the screen.

Tips for scanning a screen:

Turn the laptop brightness up.
Hold the phone still, about 20 to 30 cm away.
Avoid glare from windows or lights on the screen.
Zoom the browser in (Ctrl and +) if the code is small.

To get a link from your phone back to your laptop, send it to yourself in a message or email. If you are also moving pictures, our guide on transfer photos from iPhone to laptop covers the wired and wireless options.

Stay Safe: Check Before you Open

QR codes hide the link, so you cannot tell where they lead until you scan. Criminals stick fake codes over real ones on parking meters and posters, and send fake codes in emails. Take a few seconds to protect yourself.

Read the link before you open it. Look at the address that appears. Be suspicious of misspelt brands and strange domains.
Do not sign in from a code you did not expect. If a code appears out of nowhere and asks you to log in or pay, close it.
Be careful with shortened links. They hide the real destination.
Do not upload QR images to random websites. Some online decoders store what you send. Google Lens in Chrome avoids that risk for most people.
Never enter a password or payment details on a page you reached from a code unless you are sure the address is correct.

Why is My QR Code not Scanning?

If a scan fails, the cause is usually simple.

Problem	Fix
Nothing is detected	Fill more of the frame with the code and keep it still
The code is too small	Zoom in on the screen, or move closer
Screen glare	Tilt the laptop, close the blinds, raise the brightness
Dark mode code (white on black)	Some scanners cannot read inverted codes. Screenshot it, invert the image colours, or use another method
Camera access blocked	Settings > Privacy & security > Camera, then allow the app
Blurry image	Clean the webcam lens and improve the light
Damaged or cropped code	Ask for a new copy. Missing corners stop it working

For events: Scanning QR Codes at Scale

If you are collecting tickets or registering guests, a single laptop is rarely enough. Attendees show a code on their phone and staff scan it in a second, so speed and reliability matter more than convenience.

For a full picture of the kit organisers use, read our guide on event organisers use for attendee registration.
To run a self service desk, see how to set up a self check in kiosk using iPads.
For very fast scanning of tickets and passes, dedicated hardware is often better, and our guide to barcode scanner hire in the UK explains what to rent and when.
Scanning drains batteries quickly. Read how to check iPad battery health so your check in devices last all day.

Quick Recap

Windows 11: Camera app in Barcode mode, if your build has it.
Any laptop: right click the code in Chrome and choose Search with Google Lens.
Mac: screenshot the code and open it in Preview.
Chromebook: Camera app, Scan mode.
The website asks you to scan: use your phone camera on the laptop screen.
Always read the link before you open it.

Keep those six rules handy and you can scan a QR code on any laptop in under ten seconds.

Conclusion

Knowing how to scan a QR code on a laptop gives you several simple options depending on where the code appears. You can scan a QR code on Windows 11 using supported Camera features, use Google Lens to scan a QR code from a screenshot, or use Preview on a Mac. If you need to scan a QR code without a phone, Google Lens is often one of the easiest choices.

For occasional use, your own laptop or phone is usually enough. However, events, exhibitions and busy registration desks may need several devices scanning QR codes at the same time. In these situations, laptop rental, iPad rental or barcode scanner hire can help organisers increase check-in capacity without buying equipment that may only be needed for a short period.

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Frequently asked questions

Can you scan a QR code on a laptop?

Yes. Depending on your laptop, you can use its webcam, Google Lens, a screenshot or a built-in scanning feature. The available method varies between Windows, Mac and Chromebook devices.

How do I scan a QR code on Windows 11?

Open the Windows Camera app and check whether Barcode mode is available. If your version does not include it, take a screenshot of the QR code and open it with Google Lens in Chrome.

Can I scan a QR code without a phone?

Yes. You can scan a QR code without a phone by using a compatible laptop camera or Google Lens. If the QR code is already visible on your laptop, Google Lens can read it directly from the screen or a screenshot.

How do I scan a QR code from a screenshot?

Open the screenshot in Chrome and use Search with Google Lens. Select the area containing the QR code, and Lens should display the link or information stored inside it.

How do I scan a QR code on a Mac?

To scan a QR code on Mac, take a screenshot and open it in Preview or Photos. On supported macOS versions, the system can recognise the QR code and provide access to the embedded link.

How do I scan a WhatsApp Web QR code?

Open WhatsApp Web on your laptop, then go to Linked devices in WhatsApp on your phone. Choose Link a device and scan the WhatsApp Web QR code displayed on the laptop screen.

Why is my QR code not scanning?

A QR code not scanning can be caused by glare, low screen brightness, poor focus, a damaged code or a code that is too small. Increase its size, improve the lighting and keep all four corners clearly visible.

What equipment is useful for scanning QR codes at an event?

For a small event, a phone or laptop may be enough. Larger registration areas often use multiple iPads, laptops or dedicated barcode scanners so several guests can be processed at once. Renting the equipment can be useful when the devices are only required for a particular event or short-term project.

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