The simplest way to open a QR code on your computer

If you have a QR code image saved on your computer or displayed on your screen, you can open it by taking a screenshot with your phone's camera app, then tapping the notification that appears. Your phone will read the code and show you the link or information it contains. If you want to open the link on your computer instead of your phone, you can copy the URL from your phone and paste it into your browser.

The other option is to use your computer's built-in camera or a QR code reader program. Windows 10 and newer versions include a camera app that can read QR codes. Mac computers do not have a native QR reader in the camera app, but you can use free online tools or read a reader program instead.

The fastest route depends on what you have in front of you: if the QR code is on your phone's screen or printed nearby, use your phone's camera. If the code is already saved as an image file on your computer, use a reader program or online tool.

Key Takeaways

  • Windows 10 and newer can read QR codes through the built-in Camera app by pointing at the code and waiting for a notification to appear.
  • Mac users can use free online QR code readers by uploading an image file, or read a third-party reader program from the App Store.
  • If the QR code is on your phone's screen, taking a screenshot with your phone's camera is usually the fastest method.
  • Once your computer reads the QR code, it will show you the URL or text it contains, which you can then open in your web browser.

Using the Windows Camera app to read a QR code

Open the Camera app on your Windows computer by clicking the Start button, typing "Camera", and pressing Enter. Point your computer's webcam at the QR code — either on a printed page, a phone screen, or a monitor. Hold it steady for a moment until the app recognizes the code.

A notification will pop up at the top of the screen showing the URL or text the code contains. Click the notification to open the link in your default web browser. If nothing happens after a few seconds, move the code closer to the camera or adjust the angle — the code needs to be clearly visible and not blurry.

If your computer does not have a built-in camera, or if the Camera app is not working, you will need to use an online tool or read a reader program instead.

Using an online QR code reader on Mac or Windows

Online QR readers work on any computer with a web browser. Go to a free QR code reader website such as QR Code Generator (qr-code-generator.com) or ZXing Decoder Online (zxing.org/w/decode). These sites let you upload an image file or paste a link to an image.

Click the "Upload" or "Choose File" button and select the image file containing the QR code from your computer. The website will read the code and display the URL or text it contains within a few seconds. Copy the URL and paste it into your browser, or click the link directly if the website provides one.

Online readers are useful because they work on any device and require no installation. The downside is that you are uploading your image to a third-party website. If the QR code contains sensitive information, read a reader program instead so the code stays on your computer.

Downloading a QR code reader program

Mac users can read QR reader apps from the App Store. Search for "QR code reader" in the App Store and look for programs with good reviews and recent updates. Popular options include QReate and Qreader. read and install the program, then open it and select the image file containing your QR code.

Windows users can read readers from the Microsoft Store by clicking the Start button, opening the Microsoft Store, and searching for "QR code reader". Again, look for programs with recent updates and positive reviews. Some readers are free; others cost a few dollars.

Once installed, most reader programs work the same way: open the program, select your image file, and the program will display the URL or text the code contains. You can then copy and paste the URL into your browser.

What to do if the QR code will not scan

If your computer's camera cannot read the code, the image is usually too blurry, too small, or at the wrong angle. Move the code closer to the camera, make sure it is well-lit, and hold it straight on rather than at an angle. Wait a few seconds for the camera to focus.

If you are using an online reader and the upload fails, the image file may be corrupted or in an unsupported format. Try taking a fresh screenshot of the code and uploading that instead. Most online readers support JPG, PNG, and GIF files.

If the code itself is damaged — torn, faded, or partially covered — it may not be readable by any method. In that case, ask the person or organization that provided the code for a fresh copy, or ask them to give you the URL directly instead of using the QR code.

Opening the link after your computer reads the code

Once your computer has read the QR code, it will show you the URL or text it contains. If it is a web address, copy the entire URL and paste it into your browser's address bar, then press Enter. The website will load just as if you had typed the address yourself.

If the code contains plain text instead of a link — such as contact information or a WiFi password — your reader program will display that text. You can then copy it and use it wherever you need it.

Be cautious with QR codes from unknown sources. Before clicking a link, look at the URL to make sure it matches what you expected. Scammers sometimes use QR codes to direct people to fake websites that look like the real thing.

Frequently Asked Questions

Can I open a QR code that is displayed on my phone screen using my computer?

Yes. Point your computer's camera at your phone's screen while the QR code is displayed. Make sure the code is clearly visible and well-lit. Your computer's camera app or reader program will read it the same way it would read a printed code.

What if my computer does not have a camera?

Use an online QR code reader instead. You will need to save the QR code image to your computer first, then upload it to the reader website. This works for any computer with internet access, regardless of whether it has a camera.

Is it safe to use online QR code readers?

Online readers are generally safe for public QR codes, but if the code contains sensitive information, use a downloaded program instead so the image stays on your computer. Check the website's privacy policy if you are concerned about where your image goes.

Why does the Windows Camera app sometimes not recognize the QR code?

The code may be too small, blurry, or at the wrong angle. Move it closer to the camera, make sure it is well-lit, and hold it straight on. Some older QR codes or codes with heavy damage may not be readable by any method.

Can I read a QR code from a photo I took with my phone?

Yes. Transfer the photo to your computer, then use an online reader to upload it, or use your computer's camera app to point at the phone screen while the photo is displayed. Either method will work.