Client-side engine
QR code scanner
Scan a QR from a photo or camera. Free. Processing stays on this device.
- JPEG
- PNG
- WebP
- Camera
- 20 MB per image
- About 50 megapixels
Workflow
How to use QR code scanner
Three steps. Your file is processed in this browser and is not uploaded by this tool.
- 01
Upload an image with a QR code, or allow the camera.
Upload an image with a QR code, or allow the camera.
- 02
Wait for the decode.
Wait for the decode.
- 03
Copy the text or open the link.
Copy the text or open the link.
Direct answers
Essential questions answered
Short answers for search and answer engines. Same facts as the FAQ.
How do I scan a QR code online?
Upload an image or allow the camera, then copy the decoded text.
Is the photo uploaded?
No. Scanning runs in this browser.
Does the camera work on phones?
Yes when the browser grants camera permission over HTTPS.
Practical applications
Good for everyday workflows
Read a QR from a screenshot
Decode a QR code from a photo or the camera. Uses BarcodeDetector when available, with a JS fallback.
Open a link from a printed code
Decode a QR code from a photo or the camera. Uses BarcodeDetector when available, with a JS fallback.
Decode a QR without an app install
Decode a QR code from a photo or the camera. Uses BarcodeDetector when available, with a JS fallback.
Got questions?
Frequently asked questions
Is the QR scanner free?
Yes on ToolStudio.
What if no code is found?
You see a clear error and can try another image.
Is my photo uploaded?
No.
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Pick a tool. Get it done.
Free browser utilities on ToolStudio. No account. Most tools keep files on this device.