How the QR code decoder works
A QR code stores data as a grid of black and white squares. This decoder reads that grid straight from an image you provide. Drag a screenshot onto the box above, upload a photo, or paste an image from your clipboard, and the tool scans the pixels and returns the exact data the code contains. If the data is a web address, you get an Open link button; for anything else you get a Copy button to grab the raw text.
Because the work happens on your own device, nothing is sent to a server. That matters when a QR code holds something private, such as a Wi-Fi password, a coupon code, or a personal contact card. You can decode as many codes as you like, free, with no signup.
When you might need to read a QR code
Not every QR code is scanned by a phone camera in the moment. You might find one in a PDF, an email, a poster photo, or an old flyer and want to know where it points before you visit it. Decoding the image first lets you preview the destination, check that a printed code still works, or recover the link behind a code you created a while ago. It is also a quick way to confirm that a code you generated encodes exactly what you intended.
Create your own trackable QR codes
Reading codes is only half the story. With CodesQR dynamic QR codes you can create a code whose destination you change anytime without reprinting, and see scan analytics for every code. Point one at a link, a PDF, or an uploaded file, then track how often it gets scanned.
More free QR tools
Prefer a live view? Try the QR code scanner to read a code with your camera, or use the QR code to link tool when you only need the destination URL. To make a new code, start with the link QR generator or browse all the QR code types you can create.
Frequently asked questions
How do I decode a QR code from an image?
Upload or drag a picture of the QR code onto the decoder above. It reads the pixels directly in your browser and shows the text or link stored inside within a second. You can also paste an image from your clipboard.
Is this QR code decoder free?
Yes. Decoding QR codes here is completely free, with no account, no watermark, and no limit on how many codes you read.
Is my image uploaded to a server?
No. The decoding happens locally on your device using JavaScript. Your image never leaves your browser, which keeps private QR codes private.
What can a QR code contain?
A QR code can hold a website link, plain text, contact details, Wi-Fi credentials, a phone number, an email address, or a payment string. The decoder returns whatever raw data the code stores.
Why does it say no QR code was found?
The image may be blurry, cropped, low contrast, or the code may be too small in the frame. Use a sharp photo where the QR code is well lit and fills a good part of the picture, then try again.