π QR Code Reader
Upload an image to decode the QR code inside it.
Upload a clear image of a QR code.
How to Decode a QR Code
Upload any image containing a QR code: a photo, screenshot, or scan. The decoded text appears instantly with its detected type.
Upload the image using the file picker.
The tool scans the image and extracts the QR payload automatically.
Read the decoded content and its type: URL, contact, WiFi, text, and more.
Copy the text or open the link directly from the result card.
Why Decode Instead of Scanning
Phone cameras scan QR codes instantly, but there are many situations where you have only an image file. A QR code in an email attachment, a screenshot from a video call, a photo someone sent you, or a code on a document you scanned: none of these can be scanned by pointing a camera at your own screen reliably. Uploading the image to a decoder is faster and more accurate than photographing your monitor, which introduces moire patterns and glare. Decoding is also the safe way to inspect suspicious codes. Rather than scanning an unknown code with your phone and being whisked to a website, you can read the raw payload here first and decide whether the URL or content is trustworthy. For developers and marketers, this tool is handy for verifying that generated QR codes encode exactly the intended URL before printing thousands of flyers. Common payload types include website URLs, app store links, WiFi credentials in the WIFI:S:network;T:WPA;P:password format, vCard contact details, plain text messages, and payment addresses.
Tips for Reliable Decoding
QR codes include error correction, so they survive minor damage, but the decoder still needs a clean view. The three large finder squares in the corners must be visible and undistorted. Avoid heavy perspective: photograph documents straight on rather than at an angle. Good lighting matters more than resolution; a well-lit 800 px image decodes better than a dark 4000 px one. If the code is tiny in a large photo, crop the image first so the code fills the frame. Screenshots of QR codes on screens usually work well because they are perfectly sharp.
Frequently Asked Questions
What kinds of QR codes can this read?
It decodes any standard QR code: website URLs, plain text, email addresses, phone numbers, SMS messages, vCards containing full contact details, and WiFi credentials in the standard WIFI format. As long as the code follows the QR specification, the exact encoded payload is extracted and shown to you verbatim.
Why does it say no QR code found?
The most common causes are a blurry or low-resolution image, the code being too small in the frame, glare or shadows across the code, or heavy perspective distortion. Retake the photo straight-on in good light with the code filling at least a quarter of the image. Damaged or partially obscured codes may be unreadable.
Is it safe to decode QR codes from unknown sources?
Decoding itself is safe because the tool only reads the encoded text and never executes it. Be cautious with the decoded content: do not open shortened URLs you do not trust, and verify WiFi or payment codes before acting on them. Preview the text here first, which is exactly what this tool is for.
Does the image get uploaded anywhere?
No. Decoding runs entirely in your browser using the jsQR library, and your image never leaves your device under any circumstances. You can safely decode QR codes from private documents, confidential screenshots, boarding passes, or personal photos without any privacy concern, data transmission, or server logging. Everything happens locally on your own hardware.
Can it read barcodes too?
No, this tool handles QR codes only: the square matrix codes with finder patterns in three corners. Linear barcodes like UPC, EAN, and Code 128 use a completely different encoding and need a dedicated barcode reader. If you have a linear barcode, search for a barcode-specific decoder instead.
What should I do with a decoded URL?
First inspect the domain carefully before opening anything, especially for codes found in public places or unsolicited messages. The tool shows an Open Link button for valid URLs so you can visit them directly. When in doubt, search for the official site manually rather than following a shortened or unfamiliar link.