QR-Code am Computer scannen (Windows und Mac)

Many people assume a QR code only works with a phone. When a code shows up in a Zoom call, a PDF invoice, or a Slack screenshot, they reach for another device. You do not have to.

Windows and Mac both give you practical ways to read a code on the computer itself: a webcam for printed codes, screenshot tools for on-screen codes, browser helpers like Google Lens, and a local image decoder when you want the payload to stay in the tab.

This guide walks through the main methods, what each one is good for, and how to stay safer when you decode unfamiliar codes.

How to scan a QR code on Windows

On Windows 10 or 11, the best method depends on whether the code is printed, already on your screen, or saved as a file.

Method 1: Windows Camera app (printed or on another device)

If the code is on paper or on a second phone or tablet, the Camera app is often the fastest path—as long as your PC has a webcam.

1. Open the Camera app.
2. Look for the barcode / QR control on the side of the viewfinder.
3. Hold the code steady in front of the camera (about 15–30 cm / 6–12 inches).
4. Tap or click the link that appears when Windows recognizes the pattern.

Limitation: this path needs a live camera feed. It will not decode a PNG or screenshot sitting on disk.

If you do not see a barcode control: open Camera settings, enable experimental camera features if offered, restart the app, and try again. Some Windows builds hide the control entirely—use Method 2 or 3 instead.

Method 2: Windows 11 Snipping Tool (on-screen codes)

When the QR already fills part of your monitor, Snipping Tool on Windows 11 can decode it without a phone or webcam.

1. Press Win + Shift + S and capture just the code.
2. Open the capture in Snipping Tool.
3. Use Text actions (or the equivalent QR/text recognition control in your build).
4. Open the decoded link after you have checked the domain.

Limitation: this convenience path is a Windows 11 feature set; Windows 10 users should use Google Lens or a browser decoder instead.

Method 3: Google Lens in Chrome

If the code is an image in Chrome (a webpage or a file opened in a tab), Lens can read it in a few clicks—on Windows and Mac.

1. Right-click the QR image.
2. Choose Search image with Google Lens.
3. Wait for the sidebar result.
4. Review the URL, then open it only if it looks right.

If the code is a CSS background or part of a larger graphic, right-click may fail. Take a tight screenshot, open the screenshot in a Chrome tab, then run Lens again.

Method 4: Local browser decoder (best for files you already have)

When the code is a download, email attachment, or screenshot file, upload it to a decoder that runs in the page. On Make a QR → Decode, image reading is built to stay in the browser tab—you can confirm in the network panel while you work. That is useful for invoices, badges, and any code you would rather not send to a random third-party site.

1. Save or screenshot the QR.
2. Open Decode.
3. Upload the image (or use the camera if the code is physical).
4. Read the payload, then decide whether to open a URL.

How to scan a QR code on Mac

macOS does not mirror the iPhone Camera experience. The Mac Camera app is not a full QR reader. You still have solid options.

Method 1: Google Lens in Chrome

Same flow as Windows: right-click an image in Chrome → Search with Google Lens. For a file on disk, drag it into a new Chrome tab first.

Method 2: Safari “Open Link” (Ventura and later)

On newer macOS versions, Control-click a QR image in Safari. If the system recognizes the pattern, you may see an option to open the decoded link. If the menu item is missing, screenshot the code and use Lens or Decode.

Method 3: iPhone Continuity Camera

With a Mac on recent macOS and an iPhone on the same Apple ID (Wi‑Fi and Bluetooth on), Continuity Camera lets the phone act as a camera input. Point the iPhone at a printed code and complete the scan on the Apple side of the stack. Exact prompts vary by OS version—if Continuity does not appear, fall back to Decode or Lens.

Method 4: Local browser decoder

Identical to Windows: drop a screenshot into Make a QR Decode. No install, and the decode path is designed to stay on-device.

When a code will not scan

Situation	Try this
Windows Camera has no barcode control	Enable experimental camera features, or use Snipping Tool / Lens / Decode
Webcam never locks on	Add light, hold 15–30 cm away, check camera privacy permissions
Safari has no Open Link	Screenshot → Lens or Decode
Blurry PDF screenshot	Zoom the PDF first, then capture only the code
Damaged print	Ask for a clean digital file; mild dirt may still work thanks to error correction

Safety tips for desktop scanning

Scanning itself is usually harmless. Risk sits in the destination.

• Preview the URL before you open it. Prefer tools that show the decoded string first.
• Be wary of unexpected codes in email PDFs and invoices you did not request.
• Do not upload authenticator / 2FA setup codes to unknown websites—those images can contain account secrets. Prefer OS tools or a local decoder you trust.
• Check HTTPS and spelling on brand lookalikes.

Pick a method and move on

Printed code in front of you → Windows Camera, Continuity, or Decode with webcam.
Code already on screen → Snipping Tool (Win 11), Lens, or screenshot + Decode.
File on disk → Decode or Lens.

Need to create a clean static code afterward? Use Create and download PNG or SVG. For batch files, try Bulk CSV → ZIP.

FAQ

Can you scan a QR code on a computer without a phone?

Yes. Windows Camera, Snipping Tool, Google Lens, Safari recognition, Continuity Camera, and browser decoders all work without treating the phone as the only scanner.

How do I scan a QR from a screenshot on Windows?

On Windows 11, open the screenshot in Snipping Tool and use text / QR actions. Elsewhere, open the image in Chrome for Lens, or upload it to Decode.

Does Mac have a built-in QR scanner?

Not in the same way as iPhone Camera. Use Safari recognition where available, Continuity Camera, Lens, or a local decoder.