Does this work on mobile?

Yes. On mobile, the camera mode uses your rear camera for scanning. You can also upload a screenshot of a QR code using the upload mode.

Is my camera data private?

Yes. Camera access stays entirely in your browser. Video frames are processed locally using JavaScript — nothing is sent to any server.

What image quality do I need for a successful scan?

The QR code should be at least roughly 100×100 pixels, in focus and evenly lit. The decoder tolerates rotation up to about ±45° and moderate blur, but glare, deep shadow or heavy damage can defeat it. Cropping tight to the code often rescues a failed decode.

Can it decode a QR code from a screenshot or PDF?

Yes. Upload a JPG, PNG or WebP — including screenshots, exported PDF pages or email attachments — and the decoder reads the code without any camera. It is the practical way to read codes you cannot physically point a phone at.

How can I check a QR code is safe before opening it?

The scanner shows the raw decoded content before anything opens, so you can read the actual URL and spot QRishing (phishing) links that look legitimate at a glance. Always verify the domain before tapping through.

Can it find more than one QR code in an image?

Yes. If an image contains several QR codes, the tool detects and lists each decoded result, so you can pull every code from a single screenshot or document in one pass.

Why did my upload fail to decode?

Usually the code is too small, blurry, skewed beyond about 45°, or cut off without its quiet-zone border. Re-crop tightly around the code, increase brightness and contrast, or use a higher-resolution source image and try again.

QR Code Scanner — Scan QR Codes Online Free

How to use QR Code Scanner

Decode any QR code from an uploaded image file entirely in your browser — no camera access required. Paste a screenshot, upload a photo, or drag in a file to instantly reveal the encoded URL, text, contact, or Wi-Fi credential. Useful for extracting QR content from PDFs, screenshots, or email attachments you cannot physically scan.

Upload a JPG, PNG, or WebP image containing the QR code.
The scanner automatically locates and decodes the QR code within the image.
The decoded content appears below: URL, text, vCard, or Wi-Fi credential.
Click "Open" to visit a URL, or copy the raw text to your clipboard.
For multi-QR images, all detected codes are listed.

Your data never leaves your device — 100% private processing.

Image quality requirements

For reliable decoding, the QR code should occupy at least 100×100 pixels within the image and be reasonably well-lit and in focus. Slight rotation (up to ±45°) and moderate blur are handled automatically by the ZXing/jsQR decoder. If decoding fails, try cropping the image to just the QR code area, adjusting brightness and contrast, or using a higher-resolution source image. QR codes obscured by glare, deep shadow, or extensive damage may not decode.

Privacy and security when scanning

All decoding happens in your browser — no image data is uploaded anywhere. This is important when scanning QR codes from sensitive documents like financial statements, boarding passes, or confidential reports. Before visiting any URL decoded from a QR code, review it carefully — malicious QR codes (QRishing) can encode phishing URLs that appear legitimate at a glance. Our tool displays the raw decoded content so you can verify it before clicking.

QR content types and decoded actions
Content type	QR prefix	Decoded action
Web URL	https:// or http://	Open link in browser
Wi-Fi credential	WIFI:T:WPA;S:…	Show network + password
Contact (vCard)	BEGIN:VCARD	Save to address book
Email address	MAILTO:	Compose email
Phone number	TEL:	Initiate call
SMS	SMS: or SMSTO:	Compose text message
Map location	GEO:lat,lon	Open in maps app
Plain text	(no prefix)	Display and copy text

Worked examples

Decode from a screenshot

Inputs: upload a screenshot containing a QR

Result: reveals URL / Wi-Fi / vCard; shows raw text before opening

Multiple codes

Inputs: image with several QR codes

Result: each code detected and listed separately

Glossary

ZXing: An open-source QR and barcode scanning library originally developed by Google, widely used in web and mobile apps.
QRishing: A phishing attack that uses malicious QR codes to redirect victims to fraudulent websites.
Version (QR): A QR code's complexity level (1–40), where higher versions encode more data using a denser grid.
Finder pattern: The three square corner markers that help scanners identify and orient a QR code in an image.

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QR Code Scanner

How to use QR Code Scanner

Image quality requirements

Privacy and security when scanning

Worked examples

Glossary

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Frequently Asked Questions

Why use QR Code Scanner?

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