UD5 Toolkit
QR Code Scanner from Camera - Online Live Decode in Browser
Scan QR codes using your device camera. Decodes text, URLs, and Wi‑Fi credentials directly in the browser. No data sent to server.
Live Barcode & QR Scanner
Point your camera at any barcode or QR code to decode instantly
Camera Ready
Click Start Scan to activate your camera. Works best in good lighting.
Scan Result
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Waiting for scan...
Upload Image for Decoding
Drag & drop or click to browse – JPG, PNG, GIF, WEBP
Scan History
No scan history yet
Frequently Asked Questions
How does the live barcode scanner work?
This tool uses your device's camera and the HTML5-QRCode library (powered by ZXing) to detect and decode barcodes and QR codes in real time. All processing happens locally in your browser — no images are ever uploaded to any server, ensuring complete privacy.
What barcode formats are supported?
We support QR Code, EAN-13, EAN-8, UPC-A, UPC-E, Code 128, Code 39, Code 93, Codabar, ITF, Data Matrix, PDF 417, Aztec, MaxiCode, RSS-14, and RSS Expanded. You can filter specific formats using the dropdown above for faster, more accurate scanning.
Why isn't my camera working?
Please ensure you've granted camera permission when prompted by your browser. Also check that no other application is using the camera. This tool requires HTTPS or localhost to access the camera (a browser security requirement). Try switching cameras using the Flip button if available.
Is my data secure when using this online scanner?
Absolutely. All scanning is performed 100% client-side within your browser. No video feed, images, or scanned data ever leaves your device. You can even disconnect from the internet after the page loads and scanning will continue to work perfectly offline.
Can I scan from an image file instead of the camera?
Yes! Use the Upload Image area on the right. Drag and drop or click to select any image file (JPG, PNG, GIF, WEBP) containing a barcode or QR code. The decoder will extract the data instantly.
What's the difference between 1D and 2D barcodes?
1D barcodes (like UPC-A, EAN-13, Code 128) are linear — they store data in parallel lines of varying width. They typically hold 20–30 characters. 2D barcodes (like QR codes, Data Matrix) use patterns of squares/dots and can store thousands of characters, including URLs, text, and contact info.
How can I improve scanning accuracy?
For best results: (1) Ensure good, even lighting on the code. (2) Hold the camera steady and fill the scan frame with the code. (3) Avoid glare and reflections. (4) Clean your camera lens. (5) Select the specific barcode format from the dropdown for faster decoding.
Does this work on mobile devices and all browsers?
Yes! This scanner works on iOS Safari, Android Chrome, Firefox, Edge, and desktop browsers that support the MediaDevices API. On mobile, the rear camera is used by default for optimal scanning. The interface is fully responsive and adapts to any screen size.
Barcode Knowledge Base
QR Code – URLs, text, WiFi, vCards
EAN-13 – Retail products (Global)
UPC-A – Retail products (US/Canada)
Code 128 – Logistics & shipping
Code 39 – Automotive & defense
Data Matrix – Small item marking
PDF 417 – ID cards & transport
Aztec – Travel tickets & boarding passes
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