📷 Camera & Gallery Optical Engine
Lightning-Fast QR Code & Barcode Reader
Decode any standard 1D linear barcode or 2D matrix code in under 0.3 seconds. Point your camera in real time or extract codes directly from WhatsApp screenshots and saved photo albums — 100% free and fully offline.
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⚡ Ultra-Responsive Optical Engine
Reads Every Format
Reads Every Format
Under Any Lighting Condition
From retail product UPC codes and grocery price tags to WiFi access QR codes and boarding passes, our scanner automatically optimizes camera exposure and decodes instant data streams.
- Broad Symbology Support: QR Code, EAN-13, EAN-8, UPC-A, UPC-E, Code 128, Code 39, Code 93, Data Matrix, PDF417, Aztec & Codabar.
- Low-Light Torch Support: Built-in one-tap flashlight toggle for dim environments and evening scanning.
- Front & Rear Camera Switch: Flip between front selfie lens and rear macro cameras seamlessly.
- Instant Action Engine: 1-tap WiFi connection, browser URL opening, phone dialing, vCard contact import, and UPI payment app launching.
- Searchable Local History: Automatically retains previous scans with timestamps and search filters.
QR Code
EAN-13 & UPC
Data Matrix
PDF417
Code 128
🖼️ Gallery Photo & Screenshot Extraction
Scan QR Codes Directly
Scan QR Codes Directly
From Saved Screenshots & Photos
Received a payment QR code over WhatsApp, Telegram, or an email invoice? You do not need to borrow a second phone to scan the screen. With QR Code & PDF Scanner Pro, simply open your gallery, pick the image, and receive instant decoded results.
- Screenshot Decoder: Automatically detects codes inside cropped, low-resolution, or high-contrast mobile screenshots.
- Multi-Code Detection: Identifies multiple barcodes within a single photo and lets you choose which item to open.
- Zero Cloud Uploads: Image pixel arrays are analyzed locally in device memory; your private photos are never transmitted over the internet.
📋 Comprehensive Technical Specs
Optical Format Compatibility & Details
Explore the specifications, character encoding limits, and real-world deployment cases for each supported barcode format.
| Format Name | Dimensions | Max Payload Capacity | Common Deployment Scenarios |
|---|---|---|---|
| QR Code (Model 2) | 2D Matrix | 7,089 numeric / 4,296 alphanumeric / 2,953 binary bytes | Web addresses, digital payments, WiFi setup, marketing campaigns, contact cards |
| Data Matrix (ECC 200) | 2D Matrix | 3,116 numeric / 2,335 alphanumeric / 1,556 bytes | Small parts tracking, electronic circuit boards, surgical instruments, pharmaceuticals |
| PDF417 | 2D Stacked Linear | Over 1.1 KB of structured text/data | Identity cards, driver's licenses, government records, logistics transport manifests |
| Aztec Code | 2D Compact Matrix | 3,832 numeric / 3,067 alphanumeric | Airline electronic boarding passes, train tickets, transit fare validation |
| EAN-13 & EAN-8 | 1D Linear | 13 or 8 numeric digits | Worldwide retail point-of-sale scanning, book publishing (ISBN), groceries |
| UPC-A & UPC-E | 1D Linear | 12 or 6 numeric digits | North American retail inventory control, price verification, supermarket checkout |
| Code 128 (A, B, C) | 1D High-Density | 128 ASCII characters (Full ASCII) | Shipping container labels, warehouse logistics, package tracking (FedEx/UPS/DHL) |
| Code 39 & Code 93 | 1D Discrete | Alphanumeric + Special symbols | Defense & military asset tracking, automotive manufacturing, healthcare badges |
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❓ Scanner Troubleshooting & Tips
Tips for Optimal Scanning Results
For best results, position your device 4 to 8 inches (10 to 20 cm) away from the QR code or barcode. Ensure the code is centered within the viewfinder guidelines. If scanning a very dense code, slowly move the phone back to let the camera autofocus.
WhatsApp applies image compression when sending photos in standard mode. If a QR code is heavily compressed or blurry, ensure the screenshot contains high contrast (dark black modules on a clean white background). You can also zoom in slightly on the screenshot before selecting it.
No. All decoding and history logging are strictly executed on your Android phone's local storage. None of your scan history, URLs, or barcode data is ever uploaded to external servers.
Start Scanning QR Codes Instantly
Get the premier free Android scanner app today on Google Play Store.