Quick Scanning Tips
Good Lighting
Position QR codes in evenly lit areas. Avoid shadows and glare.
Steady Hands
Hold device steady. Rest elbows on surface for stability.
Clean Framing
Crop images closely around QR code for better focus.
Be Patient
Most codes scan in 2 seconds. Complex codes may take longer.
Supported Formats
Barcode Types
2D Codes
- QR Code
- DataMatrix
- Aztec Code
- PDF417
1D Codes
- Code 128
- Code 39
- EAN-13
- UPC-A
Image Formats
File Types
- JPEG/JPG
- PNG
- WebP
- GIF
Specifications
- Max 10MB/file
- Up to 4K resolution
- All color depths
Troubleshooting
- Ensure you're using HTTPS connection
- Allow camera permissions in browser settings
- Close other apps using camera
- Refresh page and allow permissions when prompted
- Improve lighting - avoid shadows and glare
- Adjust distance - 4-12 inches works best
- Check if QR code is damaged or obscured
- Clean camera lens for clear focus
- Use smaller image files (under 2MB recommended)
- Crop images to focus on QR code area
- Close other browser tabs to free resources
- Ensure good internet connection
Quick Fix Checklist
Frequently Asked Questions
Why scan but nothing happens?
Usually means the URL is not properly formatted or the website is unavailable. Check your internet connection and try scanning again with better lighting.
Do QR codes expire?
QR codes themselves don't expire, but the content they point to might change or become unavailable over time.
Is it safe to scan random QR codes?
Exercise caution. Only scan codes from trusted sources. Our scanner shows you the content before taking action, so you can preview links safely.
Why different scan speeds for different codes?
Scan speed depends on code complexity, image quality, lighting conditions, and your device's processing power. Simple codes scan faster than complex ones.