QR codes have transformed the way we access digital information., allowing instant connection to websites, app downloads, virtual menus, forms, and much more. While its use on mobile devices is widely known, the need to scan QR codes directly from a computer is becoming more common, whether for convenience, necessity, or because the code itself is located on the PC screen or in digital files.
This comprehensive guide explains How to read and scan QR codes with your PC, both on Windows and Mac, using all possible methods: apps, online tools, using the built-in or external camera, browser extensions, and solutions for saved images. In addition, you will learn ways to create your own QR codes and safety tips when managing them from any device.
What are QR codes and common uses from the PC
Before going into the methods for reading them on a computer, it is worth reviewing What exactly is a QR code?. It is a sophisticated evolution of the classic barcode, redeveloped by Denso Wave in the nineties, designed to store large amount of data in a small two-dimensional spaceThe information it contains can include links to web pages, contacts, Wi-Fi passwords, files, geographic locations, messages, calendar events, and much more.
Currently, there are countless applications for QR codes on computers:
- Quick access to documents or manuals online from printed materials.
- Download software or applications directly from secure links.
- Log in to services (such as WhatsApp Web, Google, etc.) by scanning from mobile devices or vice versa.
- Reading promotional information, digital menus, event tickets, product sheets, or digital business cards.
- Access Wi-Fi passwords, contact information, or forms without manually entering data.
Types of QR codes: static and dynamic
It is increasingly common to find two large groups of QR codes:
- Static: Its content is unalterable once generated, ideal for fixed information such as contact data.
- dynamic: These allow you to modify the content of the code without changing the graphic itself (for example, redirecting to different links). They're perfect for marketing campaigns, updatable digital menus, or scan analytics.
Due to their versatility, they have become key allies in business, advertising, healthcare, education, and much more.
Methods to read and scan QR codes on your PC
There are Several ways to scan QR codes from a PC or laptop, select the one that best suits your needs or the operating system you use.
1. Use your computer's camera to scan QR codes
The most direct option if the QR code is printed or on another device is to use the internal or external webcam from your PC, just like with your mobile phone. Most laptops and many modern monitors have a built-in camera; if not, any basic USB webcam will work.
Some recent versions of Windows and macOS They now allow native scanning of QR codes from the camera app.If your system supports it, the process is usually:
- Open the Camera app (search “Camera” in the Windows search bar or use “Photo Booth” on a Mac).
- Select the QR/barcode icon if available.
- Hold the QR code close to the camera. The system will recognize and extract the link or content, displaying a notification or allowing you to copy the text/URL.
Tip: If the system doesn't detect the QR code, try enabling experimental or accessibility options in your camera settings, as some systems introduce this as a beta feature in certain updates.
2. Use free apps to read QR codes on Windows
When the native camera feature is not available, you can opt for Free applications that turn your PC into a QR code readerThese apps are usually found in the Microsoft Store, are safe, and easy to install.
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QR Code for Windows
It's one of the most comprehensive and well-known apps available in the Microsoft Store. It allows you to scan QR codes with your webcam or from saved images. Plus, includes the option to generate custom QR codes for events, links, WhatsApp, etc.
Remarkable Features:
- Reading from camera or images.
- Generate new QR codes (with advanced options for payment).
- No ads and with a very intuitive interface.
- Free download: QR code for Windows.
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ScannerOne
Another excellent alternative, known for its wide support for different code formats (Codabar, Code 39, 93, 128, EAN, Data Matrix, PDF417, Aztec, among others). It includes the function of scanning from camera, image or even from the clipboard, although does not allow generating QR codes.
Completely free, with no ads or in-app purchases.
Download: ScannerOne. -
QR ScannerPlus
Especially recommended for Windows 10 and 11 users, allows you to easily scan QR codes with your PC camera and manages a scan history. It's free and supports flash webcam use if your device supports it.
NoteSome apps, such as “Photo Scan,” also help you scan images with QR codes or barcodes, making them useful for scanning documents or saving scan records on your PC.
3. Scan QR codes from images or computer screens
Do you find a QR code on a website, PDF document, or image file on your PC? You don't need another device to scan it. There are several practical ways to do this:
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Online QR scanning tools:
- MyQRCode: Free platform, no ads. You can upload a QR code image and you'll receive the content instantly. Supports webcams and 1D and 2D barcode formats.
- QR Code Scanner Online or QR TIGER: Allows you to upload screenshots or photos of QR codes and extracts the link or encoded information.
- Google Lens or Google Image Search: Right click on the QR image, select Search image on Google (in supported browsers) and in seconds you will have the link associated with the code.
- Snipping and OCR Apps on Windows: The latest versions of the app cuts Windows apps include an experimental feature for reading QR codes from screenshots. Take the screenshot, select "Text Actions," and the app will identify and display the link or text in the QR code.
4. Read QR codes on Mac: the best alternatives
For those who use Apple computers, macOS also offers free and reliable apps that allow you to both scan and create QR codes, using the Mac camera or image files:
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qr-journal
Allows you to scan with the camera or saved images, and also create new custom QR codes. Simple and cost-free interface.
Download: QR Journal on the Mac App Store. -
QR code reader
Works on Macs with Apple M1 processors and higher. Supports scanning and generating QR codes for links, events, Wi-Fi, calls, and more, from camera or images. Free download: QR code reader.
5. Browser extensions and plugins
If you spend most of your time in Chrome, Edge, or Firefox, There are extensions that allow you to read QR codes directly on any website.:
- Extensions like QR Code Reader o QR Scanner They add an icon to your browser bar. Simply click and upload the image, or select a QR code on the screen, and they'll show you the link instantly.
- Some extensions even allow you to generate QR codes from the URL you're visiting, making it easy to share links between devices.
6. Other alternatives for older or tubeless systems
If you're using older versions of Windows or Mac, or don't have access to a camera, You can also scan QR codes by uploading images to online platforms.The process consists of:
- Take a photo or screenshot of the QR code.
- Upload the image to an online reader such as MyQRCode, QR TIGER or Editpad.
- Copy the link or extracted text.
Security when scanning QR codes from the PC
Although reading QR codes is generally safe, it is important to:
- Always preview the link before clicking to avoid phishing, malware or fraud.
- Check that the app, extension, or online service you are using does not store or forward private data.
- Avoid installing applications or extensions from unofficial sites.
- Especially in the case of codes associated with payments, access or passwords, verifies the authenticity of the code.
Tools like Kaspersky's scanner include security checks and alerts about suspicious links, useful for privacy-conscious users.
Other utilities: create your own QR code on your PC
Not only can you read QR codes, but You can also generate your own QR codes from your PC. Using apps like QR Code for Windows, QR TIGER, or specialized web platforms like MyQRCode, you'll simply enter the text, link, or information you want to share, and you'll receive the code to print, share via email, WhatsApp, social media, and more.
How to read QR codes on your mobile phone and sync them with your PC
Sometimes, mobile phones and computers work together in the use of QR codes. For example, to log in to WhatsApp Web, Google, or social networks, The PC displays a QR code and you must scan it with your mobile camera.. Additionally, if you have a QR code on your phone and need to open the content on your PC, you can:
- Send a screenshot of the QR code to your computer via email or messenger and use an online tool.
- Use apps like Google Lens to read the QR code on your phone and share the link directly to your computer via cloud services, email, or WhatsApp Web.
Frequently asked questions about scanning QR codes on your PC
- Can I scan a QR code on my PC screen with another device?
Yes, just open your phone's camera and point it at the QR code on your computer screen. If the QR code is on your smartphone and you want to read it on your PC, use the image-based reading tools. - What do I do if my camera or webcam doesn't recognize the QR code?
Check that the camera is activated, has focus and sufficient lighting, and that the app has permissions. If the problem persists, use an image reader. - Are online QR scanning tools safe?
Most are successful if you access reputable platforms without intrusive ads, such as MyQRCode or QR TIGER. Even so, never upload images with sensitive data to unknown platforms. - Can I read other types of codes besides QR codes?
Yes, many tools allow you to scan traditional barcodes (EAN, Code 128, Data Matrix, Aztec, PDF417, etc.), expanding the possibilities.
Scanning QR codes on your computer is accessible and safe if you use the right tools and exercise caution when accessing unknown links. Whether from the PC camera, saved images or online tools, you can decrypt encrypted information in a matter of seconds and take advantage of all the benefits of this technology, both personally and professionally.