QR Code Reader

How to read a QR code from an image

Click the file selector on the tool page and choose an image on your computer or phone that contains a QR code, in any common format such as JPG or PNG. As soon as the file is selected, the tool automatically processes it and shows a preview image along with the decoded text inside the “Description giải mã” result box below, no extra button needed.

If the image contains a link, plain text, wifi credentials or any other data encoded in the QR code, that content appears instantly in the green result box. Click the “Copy” button to copy the full decoded text to your clipboard, then paste it into your browser, notes app or wherever you need it.

When this QR code reader is useful

This tool is handy whenever you receive a screenshot, a photo of a flyer, poster, business card or invoice that has a QR code printed on it, but opening your phone camera to scan it directly is not convenient. Marketers, designers and QA teams also use it to quickly verify what a QR code actually points to before printing it at scale, avoiding a mistyped code or an unintended link reaching customers.

It is also useful when working on a desktop computer without a webcam, or when switching back and forth between devices just to scan one code feels slower than simply uploading the image and letting the browser decode it right away.

Tips for accurate results

For the most reliable results, use an image where the QR code is sharp, well lit, not cropped at the edges, and has clear contrast between the black and white modules. If the tool shows “Không tìm thấy mã QR trong ảnh” (no QR code found), try a closer, brighter photo, or crop away extra background around the code before uploading it again.

Images containing multiple QR codes at once, or a code that is very small relative to the overall picture, can also make decoding harder, so cropping the image so the QR code fills most of the frame usually gives better results.

Privacy and free access

Reading and decoding happen entirely inside your browser using client-side image processing, meaning the image is never uploaded to a server or stored anywhere, which keeps sensitive QR codes such as payment details or personal data private. The tool is completely free, has no usage limit and requires no account or sign-up.

Frequently asked questions

Can this tool read any type of QR code? It reads standard QR codes containing text, links, contact details or wifi credentials, as long as the image is clear enough for the black and white pattern to be recognized.

Is my uploaded image stored on VSM servers? No. Decoding happens entirely in your browser, and the image is never sent to or stored on a server.

Why does it say no QR code was found in the image? This is usually caused by a blurry, poorly lit, too small or partially covered QR code, try uploading a clearer photo.

Do I need to install any app or plugin? No, you only need a web browser, there is no extra software or extension to install.